<div id="pf1" class="pf w0 h0" data-page-no="1"><div class="pc pc1 w0 h0"><div class="t m0 x0 h1 y0 ff1 fs0 fc0 sc0 ls5 ws1">i </div><div class="t m0 x1 h1 y1 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m1 x2 h2 y2 ff2 fs1 fc0 sc0 ls5 ws1">UNIVERSIDADE FEDERAL DE MI<span class="_0 blank"> </span>NAS GERAIS </div><div class="t m1 x3 h3 y3 ff2 fs2 fc0 sc0 ls5 ws1"> </div><div class="t m1 x4 h2 y4 ff2 fs1 fc0 sc0 ls5 ws1">Curso de Graduação em Engenharia Mecânica<span class="_0 blank"> </span> </div><div class="t m2 x3 h4 y5 ff2 fs3 fc0 sc0 ls5 ws1"> </div><div class="t m2 x3 h4 y6 ff2 fs3 fc0 sc0 ls5 ws1"> </div><div class="t m2 x1 h4 y7 ff2 fs3 fc0 sc0 ls0 ws1"> <span class="ls5 v1"> </span></div><div class="t m1 x5 h2 y8 ff2 fs1 fc0 sc0 ls5 ws1">TRABALHO DE GRADUAÇÃO<span class="_0 blank"> </span> </div><div class="t m1 x1 h2 y9 ff2 fs1 fc0 sc0 ls5 ws1"> </div><div class="t m1 x1 h2 ya ff2 fs1 fc0 sc0 ls5 ws1"> </div><div class="t m1 x1 h2 yb ff2 fs1 fc0 sc0 ls5 ws1"> </div><div class="t m1 x1 h2 yc ff2 fs1 fc0 sc0 ls5 ws1"> </div><div class="t m1 x1 h2 yd ff2 fs1 fc0 sc0 ls1 ws1"> <span class="ls5 v2">"Análise de Vibrações em um Motor de Combustão </span></div><div class="t m1 x6 h2 ye ff2 fs1 fc0 sc0 ls5 ws1">Interna\u201d </div><div class="t m2 x3 h4 yf ff2 fs3 fc0 sc0 ls5 ws1"> </div><div class="t m2 x3 h4 y10 ff2 fs3 fc0 sc0 ls5 ws1"> </div><div class="t m2 x3 h4 y11 ff2 fs3 fc0 sc0 ls5 ws1"> </div><div class="t m2 x3 h4 y12 ff2 fs3 fc0 sc0 ls5 ws1"> </div><div class="t m2 x3 h4 y13 ff2 fs3 fc0 sc0 ls5 ws1"> </div><div class="t m1 x7 h2 y14 ff2 fs1 fc0 sc0 ls5 ws1">Autor: Claudio Marcio Santana </div><div class="t m1 x3 h2 y15 ff2 fs1 fc0 sc0 ls5 ws1"> </div><div class="t m1 x8 h2 y16 ff2 fs1 fc0 sc0 ls5 ws1">Orientador: Jose Eduardo Mautone Barros<span class="_0 blank"> </span> </div><div class="t m1 x3 h2 y17 ff2 fs1 fc0 sc0 ls5 ws1"> </div><div class="t m1 x8 h5 y18 ff2 fs1 fc0 sc0 ls5 ws0">Co-Orientador:<span class="ff3 ls2 ws1"> </span><span class="ws1">Alessandro Simões Correa </span></div><div class="t m1 x3 h2 y19 ff2 fs1 fc0 sc0 ls5 ws1"> </div><div class="t m1 x9 h2 y1a ff2 fs1 fc0 sc0 ls5 ws1">Colaboradores: Luis Carlos Monteiro Sales<span class="_0 blank"> </span> </div><div class="t m1 xa h2 y1b ff2 fs1 fc0 sc0 ls5 ws1"> Leonardo Alvim Michelini<span class="_0 blank"> </span> </div><div class="t m1 x3 h2 y1c ff2 fs1 fc0 sc0 ls5 ws1"> </div><div class="t m1 x3 h3 y1d ff2 fs2 fc0 sc0 ls5 ws1"> </div><div class="t m1 x3 h3 y1e ff2 fs2 fc0 sc0 ls5 ws1"> </div><div class="t m1 x1 h3 y1f ff2 fs2 fc0 sc0 ls3 ws1"> <span class="ls5 v3"> </span></div><div class="t m1 x3 h3 y20 ff2 fs2 fc0 sc0 ls5 ws1"> </div><div class="t m1 x3 h3 y21 ff2 fs2 fc0 sc0 ls5 ws1"> </div><div class="t m1 x1 h3 y22 ff2 fs2 fc0 sc0 ls5 ws1"> </div><div class="t m1 x1 h2 y23 ff2 fs1 fc0 sc0 ls4 ws1"> <span class="ls5 v2"> </span></div><div class="t m1 xb h2 y24 ff2 fs1 fc0 sc0 ls5 ws1">Julho de 2010 </div><div class="t m2 x3 h4 y25 ff2 fs3 fc0 sc0 ls5 ws1"> </div></div><div class="pi" data-data='{"ctm":[1.000000,0.000000,0.000000,1.000000,0.000000,0.000000]}'></div></div> <div id="pf2" class="pf w0 h0" data-page-no="2"><div class="pc pc2 w0 h0"><div class="t m0 xc h1 y0 ff1 fs0 fc0 sc0 ls5 ws1">ii </div><div class="t m0 x1 h1 y1 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m1 x2 h2 y2 ff2 fs1 fc0 sc0 ls5 ws1">UNIVERSIDADE FEDERAL DE MI<span class="_0 blank"> </span>NAS GERAIS </div><div class="t m1 x4 h2 y26 ff2 fs1 fc0 sc0 ls5 ws1">Curso de Graduação em Engenharia Mecânica<span class="_0 blank"> </span> </div><div class="t m2 x1 h4 y27 ff2 fs3 fc0 sc0 ls0 ws1"> <span class="ls5 v1"> </span></div><div class="t m1 x3 h2 y28 ff2 fs1 fc0 sc0 ls5 ws1"> </div><div class="t m1 xd h2 y29 ff2 fs1 fc0 sc0 ls5 ws1">ANÁLISE DE VIBRAÇÕES EM UM MOT<span class="_0 blank"> </span>OR DE </div><div class="t m1 xe h2 y2a ff2 fs1 fc0 sc0 ls5 ws1">COMBUSTÃO INTERNA </div><div class="t m2 x3 h4 y2b ff2 fs3 fc0 sc0 ls5 ws1"> </div><div class="t m2 x3 h4 y2c ff2 fs3 fc0 sc0 ls5 ws1"> </div><div class="t m1 xf h2 y2d ff2 fs1 fc0 sc0 ls5 ws1"> Claudio Marcio Santana </div><div class="t m2 x3 h4 y2e ff2 fs3 fc0 sc0 ls5 ws1"> </div><div class="t m2 x3 h4 y2f ff2 fs3 fc0 sc0 ls5 ws1"> </div><div class="t m1 x10 h2 y30 ff2 fs1 fc0 sc0 ls5 ws1">Trabalho de graduação apres<span class="_0 blank"> </span>entado ao Curso de </div><div class="t m1 x11 h2 y31 ff2 fs1 fc0 sc0 ls5 ws1">Graduação em Engenharia Mecânica da<span class="_0 blank"> </span> </div><div class="t m1 xa h2 y32 ff2 fs1 fc0 sc0 ls5 ws1">Universidade Federal de Minas G<span class="_0 blank"> </span>erais </div><div class="t m2 x3 h4 y33 ff2 fs3 fc0 sc0 ls5 ws1"> </div><div class="t m1 x12 h2 y34 ff2 fs1 fc0 sc0 ls5 ws1"> Área de concentração: Engenharia Mecâ<span class="_0 blank"> </span>nica </div><div class="t m1 x3 h2 y35 ff2 fs1 fc0 sc0 ls5 ws1"> </div><div class="t m1 x2 h2 y36 ff2 fs1 fc0 sc0 ls5 ws1">Orientador: Prof.: Jose Eduardo Mautone Barros </div><div class="t m1 x8 h5 y37 ff2 fs1 fc0 sc0 ls5 ws0">Co-Orientador:<span class="ff3 ls2 ws1"> </span><span class="ws1">Alessandro Simões Correa </span></div><div class="t m1 x9 h2 y38 ff2 fs1 fc0 sc0 ls5 ws1">Colaboradores: Luis Carlos Monteiro Sales<span class="_0 blank"> </span> </div><div class="t m1 xa h2 y39 ff2 fs1 fc0 sc0 ls5 ws1"> Leonardo Alvim Michelini</div><div class="t m2 x13 h4 y39 ff2 fs3 fc0 sc0 ls5 ws1"> </div><div class="t m2 x1 h4 y3a ff2 fs3 fc0 sc0 ls5 ws1"> </div><div class="t m1 x14 h2 y3b ff2 fs1 fc0 sc0 ls5 ws1">Belo Horizonte </div><div class="t m1 x3 h2 y3c ff2 fs1 fc0 sc0 ls5 ws1"> </div><div class="t m1 x15 h2 y3d ff2 fs1 fc0 sc0 ls5 ws1">Escola de Engenharia da UFMG </div><div class="t m1 x3 h2 y3e ff2 fs1 fc0 sc0 ls5 ws1"> </div><div class="t m1 x16 h2 y3f ff1 fs1 fc0 sc0 ls6 ws1">2010 </div><div class="t m0 x1 h1 y40 ff1 fs0 fc0 sc0 ls5 ws1"> </div></div><div class="pi" data-data='{"ctm":[1.000000,0.000000,0.000000,1.000000,0.000000,0.000000]}'></div></div> <div id="pf3" class="pf w0 h0" data-page-no="3"><div class="pc pc3 w0 h0"><div class="t m0 x17 h1 y0 ff1 fs0 fc0 sc0 ls5 ws1">iii </div><div class="t m0 x1 h1 y1 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x18 h1 y41 ff1 fs0 fc0 sc0 ls5 ws1">DEDICATÓRIA </div><div class="t m0 x1 h1 y42 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y43 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y44 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y45 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y46 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y47 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y48 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y49 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y4a ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y4b ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y4c ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y4d ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y4e ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y4f ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y50 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y51 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y52 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y53 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y54 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y55 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y56 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y57 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y58 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y59 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y5a ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y5b ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y5c ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y5d ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y5e ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y5f ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y60 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y61 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y62 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y63 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y64 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y65 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y66 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y67 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y68 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y69 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y6a ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y6b ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y6c ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y6d ff1 fs0 fc0 sc0 ls5 ws1">Dedico <span class="_1 blank"> </span>esse <span class="_1 blank"> </span>trabalho <span class="_1 blank"> </span>a <span class="_2 blank"> </span>minha <span class="_1 blank"> </span>família <span class="_1 blank"> </span>e <span class="_1 blank"> </span>em <span class="_1 blank"> </span>espe<span class="_0 blank"> </span>cial <span class="_1 blank"> </span>ao <span class="_1 blank"> </span>meu <span class="_1 blank"> </span>pai <span class="_1 blank"> </span>que <span class="_2 blank"> </span>sempre <span class="_1 blank"> </span>me <span class="_1 blank"> </span>apoiou </div><div class="t m0 x1 h1 y6e ff1 fs0 fc0 sc0 ls5 ws1">nessa <span class="_3 blank"> </span>jornada, <span class="_3 blank"> </span>mas <span class="_3 blank"> </span>que <span class="_3 blank"> </span>infelizm<span class="_0 blank"> </span>ente <span class="_3 blank"> </span>não <span class="_3 blank"> </span>pode <span class="_3 blank"> </span>estar <span class="_3 blank"> </span>presente <span class="_3 blank"> </span>na <span class="_3 blank"> </span>conclusão <span class="_3 blank"> </span>desse </div><div class="t m0 x1 h1 y6f ff1 fs0 fc0 sc0 ls5 ws1">trabalho. </div><div class="t m0 x1 h1 y70 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y71 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y72 ff1 fs0 fc0 sc0 ls5 ws1"> </div></div><div class="pi" data-data='{"ctm":[1.000000,0.000000,0.000000,1.000000,0.000000,0.000000]}'></div></div> <div id="pf4" class="pf w0 h0" data-page-no="4"><div class="pc pc4 w0 h0"><div class="t m0 x17 h1 y0 ff1 fs0 fc0 sc0 ls5 ws1">iv </div><div class="t m0 x1 h1 y1 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 xb h1 y41 ff1 fs0 fc0 sc0 ls5 ws1">AGRADECIMENTOS </div><div class="t m0 x1 h1 y42 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y43 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y44 ff1 fs0 fc0 sc0 ls5 ws1">Agradeço <span class="_4 blank"> </span>a <span class="_4 blank"> </span>todos <span class="_4 blank"> </span>aqueles <span class="_4 blank"> </span>que <span class="_4 blank"> </span>estiveram <span class="_4 blank"> </span>presentes <span class="_4 blank"> </span>e <span class="_4 blank"> </span>me <span class="_4 blank"> </span>apoiara<span class="_0 blank"> </span>m <span class="_4 blank"> </span>durante <span class="_4 blank"> </span>o </div><div class="t m0 x1 h1 y45 ff1 fs0 fc0 sc0 ls5 ws1">desenvolvimento deste trabalho e em particular: </div><div class="t m0 x1 h1 y46 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y47 ff1 fs0 fc0 sc0 ls5 ws1">A minha namorada Alice Alves Andrade pela paciência e compreensão. </div><div class="t m0 x1 h1 y48 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y49 ff1 fs0 fc0 sc0 ls5 ws1">Ao Luis Carlos Monteiro Salles pela oportunidade de execução do trabalho. </div><div class="t m0 x1 h1 y4a ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y4b ff1 fs0 fc0 sc0 ls5 ws1">Ao professor Jose Eduardo Mautone Barros pelas orientações. </div><div class="t m0 x1 h1 y4c ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y4d ff1 fs0 fc0 sc0 ls5 ws1">Aos <span class="_0 blank"> </span>colegas <span class="_0 blank"> </span>de <span class="_1 blank"> </span>trabalho <span class="_0 blank"> </span>Alessandro <span class="_0 blank"> </span>Simões <span class="_0 blank"> </span>e<span class="_0 blank"> </span> <span class="_0 blank"> </span>Leonardo <span class="_0 blank"> </span>Alvin <span class="_1 blank"> </span>pelas <span class="_0 blank"> </span>orientações <span class="_0 blank"> </span>e <span class="_0 blank"> </span>ajuda<span class="_0 blank"> </span> </div><div class="t m0 x1 h1 y4e ff1 fs0 fc0 sc0 ls5 ws1">nos testes experimentais. </div><div class="t m0 x1 h1 y4f ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y50 ff1 fs0 fc0 sc0 ls5 ws1">Aos <span class="_5 blank"> </span>colegas <span class="_5 blank"> </span>de <span class="_5 blank"> </span>trabalho <span class="_5 blank"> </span>Geraldo <span class="_5 blank"> </span>B<span class="_6 blank"></span>ahia <span class="_5 blank"> </span>e <span class="_5 blank"> </span>Edson <span class="_5 blank"> </span>pela <span class="_5 blank"> </span>execução <span class="_5 blank"> </span>dos <span class="_5 blank"> </span>ensaios <span class="_5 blank"> </span>no </div><div class="t m0 x1 h1 y51 ff1 fs0 fc0 sc0 ls5 ws1">dinamômetro. </div><div class="t m0 x1 h1 y52 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y53 ff1 fs0 fc0 sc0 ls5 ws1">Ao <span class="_7 blank"> </span>colega <span class="_7 blank"> </span>Saulo <span class="_7 blank"> </span>Anderson <span class="_7 blank"> </span>Bibiano <span class="_7 blank"> </span>Jardim <span class="_7 blank"> </span>do <span class="_7 blank"> </span>Laboratório <span class="_7 blank"> </span>de <span class="_7 blank"> </span>Combustão <span class="_7 blank"> </span>da <span class="_7 blank"> </span>UFMG, </div><div class="t m0 x1 h1 y54 ff1 fs0 fc0 sc0 ls5 ws1">pela ajuda na interpretação dos dados e nos cálculos das transformadas de Fourier. </div><div class="t m0 x1 h1 y55 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y56 ff1 fs0 fc0 sc0 ls5 ws1">Agradeço aos colegas Marcelo do Mini Baja e Olavo pelo auxilio no so<span class="_0 blank"> </span>ftware ANSYS. </div><div class="t m0 x1 h1 y57 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y58 ff1 fs0 fc0 sc0 ls5 ws1">Agradeço ao colega Andreas pela ajuda no SOLID WORK. </div><div class="t m0 x1 h1 y59 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y5a ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y5b ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y5c ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y5d ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y5e ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y5f ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y60 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y61 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y62 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y63 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y64 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y65 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y66 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y67 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y68 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y69 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y6a ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y6b ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y6c ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y6d ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y6e ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y6f ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y70 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y71 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y72 ff1 fs0 fc0 sc0 ls5 ws1"> </div></div><div class="pi" data-data='{"ctm":[1.000000,0.000000,0.000000,1.000000,0.000000,0.000000]}'></div></div> <div id="pf5" class="pf w0 h0" data-page-no="5"><div class="pc pc5 w0 h0"><div class="t m0 xc h1 y0 ff1 fs0 fc0 sc0 ls5 ws1">v </div><div class="t m0 x1 h1 y1 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x19 h1 y41 ff1 fs0 fc0 sc0 ls5 ws1">RESUMO </div><div class="t m0 x1 h1 y42 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y43 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y44 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y73 ff1 fs0 fc0 sc0 ls5 ws1">Na analise de vibr<span class="_0 blank"> </span>ação e <span class="_0 blank"> </span>ruído em <span class="_0 blank"> </span>um moto<span class="_0 blank"> </span>r de combustão <span class="_0 blank"> </span>interna, vê se qu<span class="_0 blank"> </span>e as m<span class="_0 blank"> </span>aiores </div><div class="t m0 x1 h1 y74 ff1 fs0 fc0 sc0 ls5 ws1">fontes de<span class="_0 blank"> </span> <span class="_0 blank"> </span>vibrações <span class="_0 blank"> </span>e <span class="_0 blank"> </span>ruídos <span class="_0 blank"> </span>são <span class="_0 blank"> </span>produzidas <span class="_0 blank"> </span>pelas<span class="_0 blank"> </span> forças <span class="_0 blank"> </span>devido<span class="_0 blank"> </span> <span class="_0 blank"> </span>à <span class="_0 blank"> </span>combustão <span class="_0 blank"> </span>e <span class="_0 blank"> </span>as <span class="_0 blank"> </span>forças </div><div class="t m0 x1 h1 y75 ff1 fs0 fc0 sc0 ls5 ws1">mecânicas. <span class="_7 blank"> </span>Essas <span class="_8 blank"> </span>forças <span class="_8 blank"> </span>ocorrem <span class="_7 blank"> </span>numa <span class="_8 blank"> </span>ampla <span class="_8 blank"> </span>faixa <span class="_7 blank"> </span>de <span class="_8 blank"> </span>freqüência <span class="_7 blank"> </span>e <span class="_8 blank"> </span>são <span class="_8 blank"> </span>transmitidas </div><div class="t m0 x1 h1 y76 ff1 fs0 fc0 sc0 ls5 ws1">para <span class="_0 blank"> </span>a <span class="_1 blank"> </span>superfície <span class="_1 blank"> </span>externa <span class="_1 blank"> </span>do <span class="_0 blank"> </span>motor <span class="_1 blank"> </span>através <span class="_0 blank"> </span>de <span class="_1 blank"> </span>diversos <span class="_1 blank"> </span>c<span class="_6 blank"></span>aminhos; <span class="_1 blank"> </span>um <span class="_1 blank"> </span>de<span class="_6 blank"></span>les <span class="_1 blank"> </span>é <span class="_0 blank"> </span>através <span class="_1 blank"> </span>do </div><div class="t m0 x1 h1 y77 ff1 fs0 fc0 sc0 ls5 ws1">mecanismo <span class="_2 blank"> </span>pi<span class="_0 blank"> </span>stão <span class="_2 blank"> </span>- <span class="_7 blank"> </span>biela <span class="_2 blank"> </span>- <span class="_7 blank"> </span>virabrequim <span class="_2 blank"> </span>- <span class="_7 blank"> </span>bloc<span class="_6 blank"></span>o <span class="_7 blank"> </span>do <span class="_2 blank"> </span>motor. <span class="_9 blank"> </span>Como <span class="_9 blank"> </span>resultado <span class="_2 blank"> </span>da <span class="_9 blank"> </span>atuação </div><div class="t m0 x1 h1 y78 ff1 fs0 fc0 sc0 ls5 ws1">destas <span class="_7 blank"> </span>forças, <span class="_9 blank"> </span>as <span class="_7 blank"> </span>superfí<span class="_0 blank"> </span>cies <span class="_7 blank"> </span>externas <span class="_7 blank"> </span>do <span class="_7 blank"> </span>motor <span class="_7 blank"> </span>ficam <span class="_7 blank"> </span>sujeitas <span class="_7 blank"> </span>a <span class="_7 blank"> </span>vibrações <span class="_7 blank"> </span>de <span class="_7 blank"> </span>diversas </div><div class="t m0 x1 h1 y79 ff1 fs0 fc0 sc0 ls5 ws1">amplitudes. <span class="_2 blank"> </span>O <span class="_9 blank"> </span>controle <span class="_2 blank"> </span>de <span class="_2 blank"> </span>vibrações <span class="_2 blank"> </span>do <span class="_2 blank"> </span>motor <span class="_9 blank"> </span>através <span class="_2 blank"> </span>da <span class="_2 blank"> </span>modificação <span class="_2 blank"> </span>de <span class="_9 blank"> </span>sua <span class="_2 blank"> </span>estrutura </div><div class="t m0 x1 h1 y7a ff1 fs0 fc0 sc0 ls5 ws1">(bloco <span class="_1 blank"> </span>do <span class="_1 blank"> </span>motor <span class="_1 blank"> </span>e <span class="_1 blank"> </span>c<span class="_6 blank"></span>abeçote) <span class="_1 blank"> </span>é <span class="_1 blank"> </span>uma <span class="_1 blank"> </span>tarefa <span class="_0 blank"> </span>compl<span class="_0 blank"> </span>exa <span class="_1 blank"> </span>e <span class="_1 blank"> </span>requer <span class="_1 blank"> </span>considerações <span class="_1 blank"> </span>de <span class="_1 blank"> </span>diversos<span class="_6 blank"></span> </div><div class="t m0 x1 h1 y7b ff1 fs0 fc0 sc0 ls5 ws1">aspectos <span class="_2 blank"> </span>da <span class="_9 blank"> </span>engenharia, <span class="_2 blank"> </span>tais <span class="_9 blank"> </span>como: <span class="_2 blank"> </span>a <span class="_2 blank"> </span>análise <span class="_9 blank"> </span>modal, <span class="_2 blank"> </span>análise <span class="_9 blank"> </span>de <span class="_2 blank"> </span>amorte<span class="_0 blank"> </span>cimento, <span class="_2 blank"> </span>análise </div><div class="t m0 x1 h1 y7c ff1 fs0 fc0 sc0 ls5 ws1">de <span class="_8 blank"> </span>serie <span class="_a blank"> </span>de <span class="_8 blank"> </span>tempo, <span class="_a blank"> </span>entre <span class="_a blank"> </span>outros. <span class="_a blank"> </span>O <span class="_8 blank"> </span>objetivo <span class="_a blank"> </span>desse <span class="_8 blank"> </span>t<span class="_0 blank"> </span>rabalho <span class="_8 blank"> </span>é <span class="_a blank"> </span>a <span class="_8 blank"> </span>aplic<span class="_0 blank"> </span>ação <span class="_a blank"> </span>dos <span class="_8 blank"> </span>novos </div><div class="t m0 x1 h1 y7d ff1 fs0 fc0 sc0 ls5 ws1">métodos para <span class="_0 blank"> </span>serem aplic<span class="_0 blank"> </span>ados a p<span class="_0 blank"> </span>roblema típicos <span class="_0 blank"> </span>de vibrações <span class="_0 blank"> </span>e ruídos <span class="_0 blank"> </span>em <span class="_0 blank"> </span>motores, que </div><div class="t m0 x1 h1 y7e ff1 fs0 fc0 sc0 ls5 ws1">consiste <span class="_9 blank"> </span>da <span class="_7 blank"> </span>aplicação <span class="_9 blank"> </span>conjunta <span class="_7 blank"> </span>de <span class="_9 blank"> </span>técnicas <span class="_9 blank"> </span>analít<span class="_0 blank"> </span>icas <span class="_9 blank"> </span>e <span class="_7 blank"> </span>experimentais, <span class="_9 blank"> </span>para <span class="_7 blank"> </span>estudos <span class="_9 blank"> </span>de </div><div class="t m0 x1 h1 y7f ff1 fs0 fc0 sc0 ls5 ws1">estruturas <span class="_0 blank"> </span>submetidas <span class="_1 blank"> </span>a a<span class="_0 blank"> </span>ltas <span class="_0 blank"> </span>amplitudes <span class="_0 blank"> </span>d<span class="_0 blank"> </span>e <span class="_0 blank"> </span>vibrações. <span class="_0 blank"> </span> <span class="_1 blank"> </span>Espera-se <span class="_0 blank"> </span>com <span class="_0 blank"> </span>isso <span class="_1 blank"> </span>determinar <span class="_0 blank"> </span>e </div><div class="t m0 x1 h1 y80 ff1 fs0 fc0 sc0 ls5 ws1">conhecer as principais fontes excitadoras de vibrações no motor. </div><div class="t m0 x1 h1 y81 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y82 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m2 x1 h6 y83 ff3 fs3 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y84 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y85 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y86 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y87 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y88 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y89 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y8a ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y8b ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y8c ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y8d ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y8e ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y8f ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y90 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y91 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y92 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y93 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y94 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y95 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y96 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y97 ff1 fs0 fc0 sc0 ls5 ws1"> </div></div><div class="pi" data-data='{"ctm":[1.000000,0.000000,0.000000,1.000000,0.000000,0.000000]}'></div></div> <div id="pf6" class="pf w0 h0" data-page-no="6"><div class="pc pc6 w0 h0"><img fetchpriority="low" loading="lazy" class="bi x1a y98 w1 h7" alt="" src="https://files.passeidireto.com/860ac75a-0766-41f4-9521-85fc9b228ef3/bg6.png"><div class="t m0 x17 h1 y0 ff1 fs0 fc0 sc0 ls5 ws1">vi </div><div class="t m0 x1 h1 y1 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1b h1 y41 ff1 fs0 fc0 sc0 ls5 ws1">LISTA DE FIGURAS </div><div class="t m0 x3 h1 y42 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y43 ff1 fs0 fc0 sc0 ls5 ws1">Figura <span class="_a blank"> </span>2.1 <span class="_a blank"> </span>\u2013 <span class="_8 blank"> </span>O <span class="_a blank"> </span>eix<span class="_0 blank"> </span>o <span class="_a blank"> </span>de <span class="_a blank"> </span>manivelas <span class="_a blank"> </span>converte <span class="_a blank"> </span>o <span class="_a blank"> </span>movimento <span class="_a blank"> </span>do <span class="_a blank"> </span>pistão <span class="_a blank"> </span>em <span class="_a blank"> </span>movimento </div><div class="t m0 x1 h1 y44 ff1 fs0 fc0 sc0 ls5 ws1">rotatório, que é transmitido para as rodas (www.oficinabrasil.com.br) <span class="ls7 v0"> .......<span class="_0 blank"> </span>...................3 </span></div><div class="t m0 x1 h1 y99 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y9a ff1 fs0 fc0 sc0 ls5 ws1">Figura <span class="_8 blank"> </span>2.2 <span class="_a blank"> </span>- <span class="_8 blank"> </span>(a) <span class="_a blank"> </span>Diagrama <span class="_a blank"> </span>PV <span class="_a blank"> </span>e <span class="_8 blank"> </span>(b) <span class="_a blank"> </span>Diag<span class="_6 blank"></span>rama <span class="_a blank"> </span>TS <span class="_a blank"> </span>para <span class="_8 blank"> </span>o <span class="_a blank"> </span>ciclo <span class="_8 blank"> </span>Otto, <span class="_a blank"> </span>(HEYWOOD, </div><div class="t m0 x1 h1 y9b ff1 fs0 fc0 sc0 ls7 ws1">1988)..................................................................................................................................4 </div><div class="t m0 x1 h1 y9c ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y9d ff1 fs0 fc0 sc0 ls5 ws1">Figura 2.3 - Os quatro tempos do ciclo real, (BAÊTA, 2006)..........................................6 </div><div class="t m0 x1 h1 y9e ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y9f ff1 fs0 fc0 sc0 ls5 ws1">Figura <span class="_b blank"> </span>2.4- <span class="_b blank"> </span>Vista <span class="_b blank"> </span>em<span class="_0 blank"> </span> <span class="_b blank"> </span>corte <span class="_b blank"> </span>de <span class="_b blank"> </span>um<span class="_0 blank"> </span> <span class="_b blank"> </span>motor <span class="_c blank"> </span>ciclo <span class="_b blank"> </span>OTTO <span class="_b blank"> </span>de <span class="_b blank"> </span>qu<span class="_0 blank"> </span>atro <span class="_b blank"> </span>tempos </div><div class="t m0 x1 h1 ya0 ff1 fs0 fc0 sc0 ls7 ws1">(www.automobil.com.br)..................................................................................................7 </div><div class="t m0 x1 h1 ya1 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 ya2 ff1 fs0 fc0 sc0 ls5 ws1">Figura 2.5- Ciclo de dois tempos com ignição por centelha (www.automobil<span class="_0 blank"> </span>.com.br)....9 </div><div class="t m0 x1 h1 ya3 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 ya4 ff1 fs0 fc0 sc0 ls5 ws1">Figura <span class="_d blank"> </span>2.6- <span class="_d blank"> </span>Vista <span class="_d blank"> </span>e<span class="_0 blank"> </span>m <span class="_d blank"> </span>corte <span class="_d blank"> </span>de <span class="_d blank"> </span>um<span class="_0 blank"> </span> <span class="_d blank"> </span>motor <span class="_e blank"> </span>simples <span class="_d blank"> </span>de <span class="_d blank"> </span>dois <span class="_e blank"> </span>tempos </div><div class="t m0 x1 h1 ya5 ff1 fs0 fc0 sc0 ls7 ws1">(www.automobil.com.br)................................................................................................. 9 </div><div class="t m0 x1 h1 ya6 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 ya7 ff1 fs0 fc0 sc0 ls5 ws1">Figura <span class="_d blank"> </span>2.7<span class="_0 blank"> </span>- <span class="_f blank"> </span>Ilustração <span class="_e blank"> </span>de <span class="_e blank"> </span>um <span class="_f blank"> </span>bloco <span class="_f blank"> </span>motor <span class="_e blank"> </span>com <span class="_f blank"> </span>4 <span class="_e blank"> </span>cilindros. <span class="_f blank"> </span>(fonte: </div><div class="t m0 x1 h1 ya8 ff1 fs0 fc0 sc0 ls7 ws1">www.whbrasil.com.br)....................................................................................................11 </div><div class="t m0 x1 h1 ya9 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 yaa ff1 fs0 fc0 sc0 ls5 ws1">Figura 2.8- Bloco de um motor de 4 cilindros de alumínio(WIKIPEDIA).....................11 </div><div class="t m0 x1 h1 yab ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 yac ff1 fs0 fc0 sc0 ls5 ws1">Figura 2.9- Formato típico de um cabeçote (www.oficinabrasil.com.br)........<span class="_0 blank"> </span>...............12 </div><div class="t m0 x1 h1 yad ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 yae ff1 fs0 fc0 sc0 ls5 ws1">Figura 2.10- carter de um motor de quatro tempos (www.automobil.com.br)................13 </div><div class="t m0 x1 h1 yaf ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 yb0 ff1 fs0 fc0 sc0 ls5 ws1">Figura 2.11- parâmetros geométricos de um pistão (BARROS e <span class="_0 blank"> </span>BAETA, 2005)..........15 </div><div class="t m0 x1 h1 yb1 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 yb2 ff1 fs0 fc0 sc0 ls5 ws1">Figura 2.12- Pistão de motor automotivo (www.oficinabrasil.com.br).........<span class="_0 blank"> </span>..................15 </div><div class="t m0 x1 h1 y84 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y85 ff1 fs0 fc0 sc0 ls5 ws1">Figura 2.13- Anéis de segmento (www.infomotor.com.br)............................................17 </div><div class="t m0 x1 h1 y86 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y87 ff1 fs0 fc0 sc0 ls5 ws1">Figura <span class="_0 blank"> </span>2.14 <span class="_1 blank"> </span>\u2013 <span class="_1 blank"> </span>I<span class="_6 blank"></span>lustração <span class="_1 blank"> </span>de <span class="_0 blank"> </span>uma <span class="_0 blank"> </span>bi<span class="_0 blank"> </span>ela, <span class="_1 blank"> </span>juntamente <span class="_0 blank"> </span>com <span class="_1 blank"> </span>sua<span class="_6 blank"></span>s <span class="_1 blank"> </span>principais <span class="_0 blank"> </span>partes <span class="_1 blank"> </span>( <span class="_0 blank"> </span>Barros <span class="_1 blank"> </span>e </div><div class="t m0 x1 h1 y88 ff1 fs0 fc0 sc0 ls7 ws1">Baeta, 2005).....................................................................................................................17 </div><div class="t m0 x1 h1 y89 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y8a ff1 fs0 fc0 sc0 ls5 ws1">Figura 2.15- Biela de um motor de combustão interna (www.automobil<span class="_0 blank"> </span>.com.br)..........18 </div><div class="t m0 x1 h1 y8b ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y8c ff1 fs0 fc0 sc0 ls5 ws1"> Figura 2.16- Eixo de manivela (www.imp.ufsc.com.br)................................................19 </div><div class="t m0 x1 h1 y8d ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y8e ff1 fs0 fc0 sc0 ls5 ws1">Figura 2.17- Principio de funcionamento do virabrequim (www.automobil.com.br).....20 </div><div class="t m0 x1 h1 y8f ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y90 ff1 fs0 fc0 sc0 ls5 ws1">Figura 2.18- Sistema de funcionamento de um sistema de valvulas(W<span class="_0 blank"> </span>IKI<span class="_6 blank"></span>PEDIA).......21 </div><div class="t m0 x1 h1 y91 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y92 ff1 fs0 fc0 sc0 ls5 ws1">Figura 2.19- Eixo comando de válvula (www.oficinabrasil.com.br)..............................22 </div><div class="t m0 x1 h1 y93 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y94 ff1 fs0 fc0 sc0 ls5 ws1">Figura 2.20- Detalhes do motor de combustão interna (www.automobil.co<span class="_0 blank"> </span>m.br)..........22 </div><div class="t m0 x1 h1 y95 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y96 ff1 fs0 fc0 sc0 ls5 ws1">Figura <span class="_a blank"> </span>2.21 \u2013 <span class="_a blank"> </span>As três <span class="_a blank"> </span>fases <span class="_a blank"> </span>da combustão <span class="_a blank"> </span>em um <span class="_a blank"> </span>motor ciclo <span class="_a blank"> </span>Otto \u2013<span class="_6 blank"></span> <span class="_a blank"> </span>adaptada de<span class="_6 blank"></span> </div><div class="t m0 x1 h1 y97 ff1 fs0 fc0 sc0 ls7 ws1">(HEISLER, 1995)............................................................................................................25 </div></div><div class="pi" data-data='{"ctm":[1.000000,0.000000,0.000000,1.000000,0.000000,0.000000]}'></div></div> <div id="pf7" class="pf w0 h0" data-page-no="7"><div class="pc pc7 w0 h0"><img fetchpriority="low" loading="lazy" class="bi x1c yb3 w2 h8" alt="" src="https://files.passeidireto.com/860ac75a-0766-41f4-9521-85fc9b228ef3/bg7.png"><div class="t m0 x1d h1 y0 ff1 fs0 fc0 sc0 ls5 ws1">vii </div><div class="t m0 x1 h1 y1 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y41 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y42 ff1 fs0 fc0 sc0 ls5 ws1">Figura <span class="_a blank"> </span>2.22 \u2013 Desenvolvimento da<span class="_6 blank"></span> <span class="_a blank"> </span>press<span class="_0 blank"> </span>ão <span class="_a blank"> </span>no interior de <span class="_a blank"> </span>um cilindro, <span class="_a blank"> </span>com e <span class="_a blank"> </span>sem </div><div class="t m0 x1 h1 y43 ff1 fs0 fc0 sc0 ls7 ws1">combustão-adaptada de (HEISLER, 1995)...................................................................26 </div><div class="t m0 x1 h1 y44 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y45 ff1 fs0 fc0 sc0 ls5 ws1">Figura 2.23\u2013 Seqüência de fotos onde se pode verificar o fenômeno da detonação </div><div class="t m0 x1 h1 y46 ff1 fs0 fc0 sc0 ls5 ws2">(www.mech-eng.leeds.ac.uk/res-group/combustion<span class="ls7 ws1 v0">)......................................................29 </span></div><div class="t m0 x1 h1 y9b ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y9c ff1 fs0 fc0 sc0 ls5 ws1">Figura 2.24 \u2013 Zonas de pré-ignição (MARTINS, 2005)................................................<span class="_0 blank"> </span>.31 </div><div class="t m0 x1 h1 y9d ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y9e ff1 fs0 fc0 sc0 ls5 ws1">Figura 0,25 Efeito no avanço de ignição no diagrama PV (GIACOSA, 2004)..............31 </div><div class="t m0 x1 h1 y9f ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h9 ya0 ff1 fs0 fc0 sc0 ls5 ws1">Figura 0,26 Registro da vibração e espectro (Transformada de Fourier)........................33<span class="ff4"> </span></div><div class="t m0 x1 h1 ya1 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 ya2 ff1 fs0 fc0 sc0 ls5 ws1">Figura 2.27- Vista em corte de um motor ciclo OTTO de quatro tempos </div><div class="t m0 x1 h1 ya3 ff1 fs0 fc0 sc0 ls7 ws1">(www.automobil.com.br)................................................................................................35 </div><div class="t m0 x1 h1 ya4 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 ya5 ff1 fs0 fc0 sc0 ls5 ws1">Figura 2.28- forças reversíveis atuando sobre o pistão (GERGES, S. N. Y. 2005)........37 </div><div class="t m0 x1 h1 ya6 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 ya7 ff1 fs0 fc0 sc0 ls5 ws1">Figura 3.1 Dinamômetro hidráulico ( Borghi & Saveri Itália, 1999)..............................39 </div><div class="t m0 x1 h1 ya8 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 ya9 ff1 fs0 fc0 sc0 ls5 ws1">Figura 3.2 Dinamômetro elétrico ( Borghi & Saveri, 1999)...........................................40 </div><div class="t m0 x1 h1 yaa ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 yab ff1 fs0 fc0 sc0 ls7 ws1">Figura 3.3 Tacômetro digital...........................................................................................40 </div><div class="t m0 x1 h9 yb4 ff4 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 yad ff1 fs0 fc0 sc0 ls7 ws1">Figura 3.4 Vela de ignição instrumentada.......................................................................41 </div><div class="t m0 x1 h1 yae ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 yaf ff1 fs0 fc0 sc0 ls5 ws1">Figura <span class="_10 blank"> </span>3.5 <span class="_10 blank"> </span>Montagem <span class="_11 blank"> </span>dos <span class="_10 blank"> </span>acelerômetros <span class="_10 blank"> </span>nos<span class="_0 blank"> </span> <span class="_10 blank"> </span>mancais <span class="_10 blank"> </span>fix<span class="_0 blank"> </span>os <span class="_10 blank"> </span>lado <span class="_11 blank"> </span>transmissão <span class="_10 blank"> </span>e </div><div class="t m0 x1 h1 yb0 ff1 fs0 fc0 sc0 ls7 ws1">distribuição......................................................................................................................42 </div><div class="t m0 x1 h1 yb1 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 yb2 ff1 fs0 fc0 sc0 ls5 ws1">Figura 4.1 Diferença de vibração transversal ao eix<span class="_0 blank"> </span>o a 1500 RPM................................48 </div><div class="t m0 x1 h1 y84 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y85 ff1 fs0 fc0 sc0 ls5 ws1">Figura 4.2 Diferença de vibração longitudinal ao eix<span class="_0 blank"> </span>o a 1500 RPM..............................48 </div><div class="t m0 x1 h1 y86 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y87 ff1 fs0 fc0 sc0 ls5 ws1">Figura <span class="_8 blank"> </span>4.3 <span class="_8 blank"> </span>Dife<span class="_6 blank"></span>rença <span class="_8 blank"> </span>de <span class="_8 blank"> </span>vibração <span class="_7 blank"> </span>no<span class="_0 blank"> </span> <span class="_8 blank"> </span>bloco <span class="_8 blank"> </span>do <span class="_8 blank"> </span>motor <span class="_8 blank"> </span>long<span class="_6 blank"></span>itudinal <span class="_8 blank"> </span>ao <span class="_8 blank"> </span>veiculo <span class="_8 blank"> </span>a <span class="_7 blank"> </span>1500 </div><div class="t m0 x1 h1 y88 ff1 fs0 fc0 sc0 ls7 ws1">RPM.................................................................................................................................49 </div><div class="t m0 x1 h1 y89 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y8a ff1 fs0 fc0 sc0 ls5 ws1">Figura 4.4 Diferença de vibração transversal ao eix<span class="_0 blank"> </span>o a 4000 RPM................................49 </div><div class="t m0 x1 h1 y8b ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y8c ff1 fs0 fc0 sc0 ls5 ws1">Figura 4.5 Diferença de vibração longitudinal ao eix<span class="_0 blank"> </span>o a 4000 RPM..............................50 </div><div class="t m0 x1 h1 y8d ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y8e ff1 fs0 fc0 sc0 ls5 ws1">Figura <span class="_8 blank"> </span>4.6 <span class="_8 blank"> </span>Dife<span class="_6 blank"></span>rença <span class="_8 blank"> </span>de <span class="_8 blank"> </span>vibração <span class="_7 blank"> </span>no<span class="_0 blank"> </span> <span class="_8 blank"> </span>bloco <span class="_8 blank"> </span>do <span class="_8 blank"> </span>motor <span class="_8 blank"> </span>long<span class="_6 blank"></span>itudinal <span class="_8 blank"> </span>ao <span class="_8 blank"> </span>veiculo <span class="_8 blank"> </span>a <span class="_7 blank"> </span>4000 </div><div class="t m0 x1 h1 y8f ff1 fs0 fc0 sc0 ls7 ws1">RPM.................................................................................................................................50 </div><div class="t m0 x1 h1 y90 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y91 ff1 fs0 fc0 sc0 ls5 ws1">Figura 4.7 Diferença de vibração transversal ao eix<span class="_0 blank"> </span>o a 6000 RPM................................51 </div><div class="t m0 x1 h1 y92 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y93 ff1 fs0 fc0 sc0 ls5 ws1">Figura 4.8 Diferença de vibração longitudinal ao eix<span class="_0 blank"> </span>o a 6000 RPM..............................51 </div><div class="t m0 x1 h1 y94 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y95 ff1 fs0 fc0 sc0 ls5 ws1">Figura <span class="_8 blank"> </span>4.9 <span class="_8 blank"> </span>Dife<span class="_6 blank"></span>rença <span class="_8 blank"> </span>de <span class="_8 blank"> </span>vibração <span class="_7 blank"> </span>no<span class="_0 blank"> </span> <span class="_8 blank"> </span>bloco <span class="_8 blank"> </span>do <span class="_8 blank"> </span>motor <span class="_8 blank"> </span>long<span class="_6 blank"></span>itudinal <span class="_8 blank"> </span>ao <span class="_8 blank"> </span>veiculo <span class="_8 blank"> </span>a <span class="_7 blank"> </span>6000 </div><div class="t m0 x1 h1 y96 ff1 fs0 fc0 sc0 ls7 ws1">RPM.................................................................................................................................52 </div><div class="t m0 x1 h1 y97 ff1 fs0 fc0 sc0 ls5 ws1"> </div></div><div class="pi" data-data='{"ctm":[1.000000,0.000000,0.000000,1.000000,0.000000,0.000000]}'></div></div> <div id="pf8" class="pf w0 h0" data-page-no="8"><div class="pc pc8 w0 h0"><div class="t m0 x1e h1 y0 ff1 fs0 fc0 sc0 ls5 ws1">viii </div><div class="t m0 x1 h1 y1 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y41 ff1 fs0 fc0 sc0 ls5 ws1">Figura 4.10 Diferença de pressão de combustão entre etanol e gasolina a 40<span class="_0 blank"> </span>00 RPM...53 </div><div class="t m0 x1 h1 y42 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y43 ff1 fs0 fc0 sc0 ls5 ws1">Figura 4.11 Diferença de pressão de combustão entre etanol e gasolina a 60<span class="_0 blank"> </span>00 RPM...53 </div><div class="t m0 x1 h1 y44 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y45 ff1 fs0 fc0 sc0 ls5 ws1">Figura <span class="_1 blank"> </span>4.12 <span class="_2 blank"> </span>Gráfico <span class="_2 blank"> </span>de <span class="_2 blank"> </span>pressão <span class="_2 blank"> </span>no <span class="_2 blank"> </span>cilindro, <span class="_2 blank"> </span>coletor <span class="_2 blank"> </span>de <span class="_2 blank"> </span>admissão, <span class="_2 blank"> </span>coletor <span class="_2 blank"> </span>de <span class="_2 blank"> </span>descarga <span class="_2 blank"> </span>e </div><div class="t m0 x1 h1 y46 ff1 fs0 fc0 sc0 ls7 ws1">rotação do motor..............................................................................................................55 </div><div class="t m0 x1 h1 y47 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y48 ff1 fs0 fc0 sc0 ls5 ws1">Figura <span class="_1 blank"> </span>4.13 <span class="_2 blank"> </span>Gráfico <span class="_2 blank"> </span>de <span class="_2 blank"> </span>pressão <span class="_2 blank"> </span>no <span class="_2 blank"> </span>cilindro, <span class="_2 blank"> </span>coletor <span class="_2 blank"> </span>de <span class="_2 blank"> </span>admissão, <span class="_2 blank"> </span>coletor <span class="_2 blank"> </span>de <span class="_2 blank"> </span>descarga <span class="_2 blank"> </span>e </div><div class="t m0 x1 h1 y49 ff1 fs0 fc0 sc0 ls7 ws1">rotação do motor..............................................................................................................55 </div><div class="t m0 x1 h1 y4a ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y4b ff1 fs0 fc0 sc0 ls5 ws1">Figura <span class="_1 blank"> </span>4.14 <span class="_2 blank"> </span>Gráfico <span class="_2 blank"> </span>de <span class="_2 blank"> </span>pressão <span class="_2 blank"> </span>no <span class="_2 blank"> </span>cilindro, <span class="_2 blank"> </span>coletor <span class="_2 blank"> </span>de <span class="_2 blank"> </span>admissão, <span class="_2 blank"> </span>coletor <span class="_2 blank"> </span>de <span class="_2 blank"> </span>descarga <span class="_2 blank"> </span>e </div><div class="t m0 x1 h1 y4c ff1 fs0 fc0 sc0 ls7 ws1">rotação do motor..............................................................................................................56 </div><div class="t m0 x1f h9 yb5 ff4 fs0 fc0 sc0 ls8 ws1"> <span class="ff1 ls5 v4">Figura <span class="_1 blank"> </span>4.15 <span class="_2 blank"> </span>Gráfico <span class="_2 blank"> </span>de <span class="_2 blank"> </span>pressão <span class="_2 blank"> </span>no <span class="_2 blank"> </span>cilindro, <span class="_2 blank"> </span>coletor <span class="_2 blank"> </span>de <span class="_2 blank"> </span>admissão, <span class="_2 blank"> </span>coletor <span class="_2 blank"> </span>de <span class="_2 blank"> </span>descarga <span class="_2 blank"> </span>e </span></div><div class="t m0 x1 h1 y4f ff1 fs0 fc0 sc0 ls7 ws1">rotação do motor..............................................................................................................56 </div><div class="t m0 x1 h1 y50 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y51 ff1 fs0 fc0 sc0 ls5 ws1">Figura <span class="_1 blank"> </span>4.16 <span class="_2 blank"> </span>Gráfico <span class="_2 blank"> </span>de <span class="_2 blank"> </span>pressão <span class="_2 blank"> </span>no <span class="_2 blank"> </span>cilindro, <span class="_2 blank"> </span>coletor <span class="_2 blank"> </span>de <span class="_2 blank"> </span>admissão, <span class="_2 blank"> </span>coletor <span class="_2 blank"> </span>de <span class="_2 blank"> </span>descarga <span class="_2 blank"> </span>e </div><div class="t m0 x1 h1 y52 ff1 fs0 fc0 sc0 ls7 ws1">rotação do motor..............................................................................................................57 </div><div class="t m0 x1 h1 y53 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y54 ff1 fs0 fc0 sc0 ls5 ws1">Figura <span class="_1 blank"> </span>4.17 <span class="_2 blank"> </span>Gráfico <span class="_2 blank"> </span>de <span class="_2 blank"> </span>pressão <span class="_2 blank"> </span>no <span class="_2 blank"> </span>cilindro, <span class="_2 blank"> </span>coletor <span class="_2 blank"> </span>de <span class="_2 blank"> </span>admissão, <span class="_2 blank"> </span>coletor <span class="_2 blank"> </span>de <span class="_2 blank"> </span>descarga <span class="_2 blank"> </span>e </div><div class="t m0 x1 h1 y55 ff1 fs0 fc0 sc0 ls7 ws1">rotação do motor..............................................................................................................57 </div><div class="t m0 x1 h1 yb6 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 yb7 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 yb8 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 yb9 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 yba ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 ybb ff1 fs0 fc0 sc0 ls9 ws1"> <span class="ls5 v4"> </span></div><div class="t m0 x3 h1 ybc ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x3 h1 ybd ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x3 h1 ybe ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x3 h1 ybf ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x3 h1 yc0 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x3 h1 yc1 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x3 h1 yc2 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x3 h1 yc3 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x3 h1 yc4 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x3 h1 yc5 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x3 h1 yc6 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x3 h1 yc7 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x3 h1 yc8 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x3 h1 yc9 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x3 h1 yca ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x3 h1 ycb ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 ycc ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 ycd ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 yce ff1 fs0 fc0 sc0 ls5 ws1"> </div></div><div class="pi" data-data='{"ctm":[1.000000,0.000000,0.000000,1.000000,0.000000,0.000000]}'></div></div> <div id="pf9" class="pf w0 h0" data-page-no="9"><div class="pc pc9 w0 h0"><div class="t m0 x17 h1 y0 ff1 fs0 fc0 sc0 ls5 ws1">ix </div><div class="t m0 x1 h1 y1 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x20 h1 ycf ff1 fs0 fc0 sc0 ls5 ws1">LISTA DE TABELAS </div><div class="t m0 x1 h1 yd0 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 yd1 ff1 fs0 fc0 sc0 ls5 ws1">Tabela <span class="_0 blank"> </span>2.1 <span class="_1 blank"> </span>\u2013 <span class="_1 blank"> </span>Parâmetros <span class="_1 blank"> </span>ge<span class="_6 blank"></span>ométricos <span class="_1 blank"> </span>de <span class="_0 blank"> </span>pis<span class="_0 blank"> </span>tão <span class="_1 blank"> </span>para <span class="_1 blank"> </span>os <span class="_0 blank"> </span>motores <span class="_1 blank"> </span>ciclo <span class="_1 blank"> </span>Otto <span class="_0 blank"> </span>(BARROS <span class="_1 blank"> </span>e </div><div class="t m0 x1 h1 yd2 ff1 fs0 fc0 sc0 ls7 ws1">BAETA, 2005).................................................................................................................14 </div><div class="t m0 x1 h1 yd3 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 yd4 ff1 fs0 fc0 sc0 ls5 ws1">Tabela <span class="_8 blank"> </span>3.1 <span class="_8 blank"> </span>- <span class="_a blank"> </span>Amplitudes <span class="_8 blank"> </span>originadas <span class="_8 blank"> </span>da <span class="_8 blank"> </span>transfor<span class="_0 blank"> </span>mada <span class="_8 blank"> </span>de <span class="_8 blank"> </span>Fourier, <span class="_8 blank"> </span>f<span class="_0 blank"> </span>ator <span class="_8 blank"> </span>de <span class="_8 blank"> </span>correção <span class="_a blank"> </span>e </div><div class="t m0 x1 h1 yd5 ff1 fs0 fc0 sc0 ls7 ws1">amplitude corrigida..........................................................................................................44 </div><div class="t m0 x1 h1 yd6 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 yd7 ff1 fs0 fc0 sc0 ls5 ws1">Tabela <span class="_8 blank"> </span>3.2 <span class="_8 blank"> </span>- <span class="_a blank"> </span>Amplitudes <span class="_8 blank"> </span>originadas <span class="_8 blank"> </span>da <span class="_8 blank"> </span>transfor<span class="_0 blank"> </span>mada <span class="_8 blank"> </span>de <span class="_8 blank"> </span>Fourier, <span class="_8 blank"> </span>f<span class="_0 blank"> </span>ator <span class="_8 blank"> </span>de <span class="_8 blank"> </span>correção <span class="_a blank"> </span>e </div><div class="t m0 x1 h1 yd8 ff1 fs0 fc0 sc0 ls7 ws1">amplitude corrigida..........................................................................................................44 </div><div class="t m0 x1 h1 yd9 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 yda ff1 fs0 fc0 sc0 ls5 ws1">Tabela <span class="_8 blank"> </span>3.3 <span class="_8 blank"> </span>- <span class="_a blank"> </span>Amplitudes <span class="_8 blank"> </span>originadas <span class="_8 blank"> </span>da <span class="_8 blank"> </span>transfor<span class="_0 blank"> </span>mada <span class="_8 blank"> </span>de <span class="_8 blank"> </span>Fourier, <span class="_8 blank"> </span>f<span class="_0 blank"> </span>ator <span class="_8 blank"> </span>de <span class="_8 blank"> </span>correção <span class="_a blank"> </span>e </div><div class="t m0 x1 h1 ydb ff1 fs0 fc0 sc0 ls7 ws1">amplitude corrigida..........................................................................................................45 </div><div class="t m0 x1 h1 ydc ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 ydd ff1 fs0 fc0 sc0 ls5 ws1">Tabela <span class="_8 blank"> </span>3.4 <span class="_8 blank"> </span>- <span class="_a blank"> </span>Amplitudes <span class="_8 blank"> </span>originadas <span class="_8 blank"> </span>da <span class="_8 blank"> </span>transfor<span class="_0 blank"> </span>mada <span class="_8 blank"> </span>de <span class="_8 blank"> </span>Fourier, <span class="_8 blank"> </span>f<span class="_0 blank"> </span>ator <span class="_8 blank"> </span>de <span class="_8 blank"> </span>correção <span class="_a blank"> </span>e </div><div class="t m0 x1 h1 yde ff1 fs0 fc0 sc0 ls7 ws1">amplitude corrigida......................................................................................................... 45 </div><div class="t m0 x1 h1 ydf ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 ye0 ff1 fs0 fc0 sc0 ls5 ws1">Tabela <span class="_8 blank"> </span>3.5 <span class="_8 blank"> </span>- <span class="_a blank"> </span>Amplitudes <span class="_8 blank"> </span>originadas <span class="_8 blank"> </span>da <span class="_8 blank"> </span>transfor<span class="_0 blank"> </span>mada <span class="_8 blank"> </span>de <span class="_8 blank"> </span>Fourier, <span class="_8 blank"> </span>f<span class="_0 blank"> </span>ator <span class="_8 blank"> </span>de <span class="_8 blank"> </span>correção <span class="_a blank"> </span>e </div><div class="t m0 x1 h1 ye1 ff1 fs0 fc0 sc0 ls7 ws1">amplitude corrigida..........................................................................................................45 </div><div class="t m0 x1 h1 ye2 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 ye3 ff1 fs0 fc0 sc0 ls5 ws1">Tabela <span class="_8 blank"> </span>3.6 <span class="_8 blank"> </span>- <span class="_a blank"> </span>Amplitudes <span class="_8 blank"> </span>originadas <span class="_8 blank"> </span>da <span class="_8 blank"> </span>transfor<span class="_0 blank"> </span>mada <span class="_8 blank"> </span>de <span class="_8 blank"> </span>Fourier, <span class="_8 blank"> </span>f<span class="_0 blank"> </span>ator <span class="_8 blank"> </span>de <span class="_8 blank"> </span>correção <span class="_a blank"> </span>e </div><div class="t m0 x1 h1 ye4 ff1 fs0 fc0 sc0 ls7 ws1">amplitude corrigida........................................................................................................45 </div><div class="t m0 x1 h1 ye5 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 ye6 ff1 fs0 fc0 sc0 ls5 ws1">Tabela <span class="_0 blank"> </span>3.7 <span class="_1 blank"> </span>- <span class="_1 blank"> </span>Rotação <span class="_0 blank"> </span>de <span class="_1 blank"> </span>ensaio <span class="_0 blank"> </span>e <span class="_1 blank"> </span>freqüência <span class="_0 blank"> </span>dom<span class="_0 blank"> </span>inante <span class="_1 blank"> </span>e <span class="_0 blank"> </span>seus <span class="_1 blank"> </span>harmônicos <span class="_0 blank"> </span>ate <span class="_1 blank"> </span>a <span class="_1 blank"> </span>dé<span class="_6 blank"></span>cima </div><div class="t m0 x1 h1 ye7 ff1 fs0 fc0 sc0 ls7 ws1">ordem. ................................................................................................................46 </div><div class="t m0 x1 h1 ye8 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 ye9 ff1 fs0 fc0 sc0 ls5 ws1">Tabela 4.1 \u2013 Calculo das freqüências de ressonância no coletor de admissão................58 </div><div class="t m0 x1 h1 yea ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 ybb ff1 fs0 fc0 sc0 ls5 ws1">Tabela 4.2 \u2013 Calculo das freqüências de ressonância no coletor de descarga.................59 </div><div class="t m0 x1 h1 yeb ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 ybc ff1 fs0 fc0 sc0 ls5 ws1">Tabela 4.3 \u2013 modos de vibrações do eixo virabrequim...............<span class="_0 blank"> </span>....................................59 </div><div class="t m0 x1 h1 ybd ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 ybe ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 ybf ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 yc0 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 yc1 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 yc2 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 yc3 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 yc4 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 yc5 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 yc6 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 yc7 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 yc8 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 yc9 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 yca ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 ycb ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 ycc ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 ycd ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 yec ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 y40 ff1 fs0 fc0 sc0 ls5 ws1"> </div></div><div class="pi" data-data='{"ctm":[1.000000,0.000000,0.000000,1.000000,0.000000,0.000000]}'></div></div> <div id="pfa" class="pf w0 h0" data-page-no="a"><div class="pc pca w0 h0"><div class="t m0 xc h1 y0 ff1 fs0 fc0 sc0 ls5 ws1">x </div><div class="t m0 x1 h1 y1 ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x21 h1 ycf ff1 fs0 fc0 sc0 ls5 ws1">LISTA DE ABREVIATURAS E S<span class="_0 blank"> </span>I<span class="_6 blank"></span>GLAS </div><div class="t m0 x1 h1 yed ff1 fs0 fc0 sc0 ls5 ws1"> </div><div class="t m0 x1 h1 yee ff1 fs0 fc0 sc0 ls5 ws1">C(s) = sinal de saída </div><div class="t m0 x1 h1 yef ff1 fs0 fc0 sc0 ls5">c</div><div class="t m3 x22 ha yf0 ff1 fs4 fc0 sc0 ls5">p</div><div class="t m0 x23 h1 yf1 ff1 fs0 fc0 sc0 ls5 ws1"> = calor específico a pressão constante </div><div class="t m0 x1 h1 yf2 ff1 fs0 fc0 sc0 ls5">c</div><div class="t m3 x22 ha yf3 ff1 fs4 fc0 sc0 ls5">v</div><div class="t m0 x23 h1 yf2 ff1 fs0 fc0 sc0 ls5 ws1"> = calor específico a volume constante<span class="_0 blank"> </span> </div><div class="t m0 x1 h1 yf4 ff1 fs0 fc0 sc0 ls5 ws1">I = momento de inércia </div><div class="t m0 x1 h1 yf5 ff1 fs0 fc0 sc0 ls5 ws1">IC = internal combustion </div><div class="t m0 x1 h1 yf6 ff1 fs0 fc0 sc0 ls5 ws1">K = constante de ganho </div><div class="t m0 x1 h1 yf7 ff1 fs0 fc0 sc0 ls5 ws1">m = massa </div><div class="t m0 x1 h1 yf8 ff1 fs0 fc0 sc0 ls5">m</div><div class="t m3 x23 ha yf9 ff1 fs4 fc0 sc0 ls5">a</div><div class="t m0 x24 h1 yf8 ff1 fs0 fc0 sc0 ls5 ws1"> = massa de ar no cilindro em um ciclo </div><div class="t m0 x1 h1 yfa ff1 fs0 fc0 sc0 ls5 ws1">M/K = resposta em amplitude </div><div class="t m0 x1 h1 yfb ff1 fs0 fc0 sc0 ls5">P</div><div class="t m3 x25 ha yfc ff1 fs4 fc0 sc0 ls5">a</div><div class="t m0 x23 h1 yfb ff1 fs0 fc0 sc0 ls5 ws1"> = potência de atrito </div><div class="t m0 x1 h1 yfd ff1 fs0 fc0 sc0 ls5 ws1">Patm = pressão atmosférica </div><div class="t m0 x1 h1 yfe ff1 fs0 fc0 sc0 ls5">P</div><div class="t m3 x25 ha yff ff1 fs4 fc0 sc0 ls5">e</div><div class="t m0 x23 h1 yfe ff1 fs0 fc0 sc0 ls5 ws1"> = potência efetiva </div><div class="t m0 x1 h1 y100 ff1 fs0 fc0 sc0 ls5">P</div><div class="t m3 x25 ha y101 ff1 fs4 fc0 sc0 ls5">i</div><div class="t m0 x23 h1 y100 ff1 fs0 fc0 sc0 ls5 ws1"> = potência indicada </div><div class="t m0 x1 h1 y102 ff1 fs0 fc0 sc0 ls5 ws1">PMI = ponto morto inferior </div><div class="t m0 x1 h1 y103 ff1 fs0 fc0 sc0 ls5 ws1">PMS = ponto morto superior </div><div class="t m0 x1 h1 y104 ff1 fs0 fc0 sc0 ls5">P</div><div class="t m3 x25 ha y105 ff1 fs4 fc0 sc0 ls5 ws3">REF</div><div class="t m0 xd h1 y104 ff1 fs0 fc0 sc0 ls5 ws1"> = potência nas condições de referência </div><div class="t m0 x1 h1 y106 ff1 fs0 fc0 sc0 ls5 ws1">Ps = pressão seca </div><div class="t m0 x1 h1 y107 ff1 fs0 fc0 sc0 ls5 ws1">Pso = pressão seca do ambiente </div><div class="t m0 x1 h1 y108 ff1 fs0 fc0 sc0 ls5 ws1">PV = diagrama pressão \u2013 volume </div><div class="t m0 x1 h1 y109 ff1 fs0 fc0 sc0 lsa">P<span class="ff5 lsb">\u03b8</span><span class="ls5 ws1"> = diagrama pressão \u2013 ângulo do virabrequim </span></div><div class="t m0 x1 h1 y10a ff1 fs0 fc0 sc0 lsc">P<span class="ff6 ls5 ws4">\u03b3</span><span class="ls5 ws1"> = potência medida </span></div><div class="t m0 x1 h1 y10b ff1 fs0 fc0 sc0 ls5">Q</div><div class="t m3 x23 ha y10c ff1 fs4 fc0 sc0 ls5">r</div><div class="t m0 x26 h1 y10b ff1 fs0 fc0 sc0 ls5 ws1"> = calor rejeitado </div><div class="t m0 x1 h1 y10d ff1 fs0 fc0 sc0 ls5">Q</div><div class="t m3 x23 ha y10e ff1 fs4 fc0 sc0 ls5">s</div><div class="t m0 x26 h1 y10d ff1 fs0 fc0 sc0 ls5 ws1"> = calor fornecido </div><div class="t m0 x1 h1 y10f ff1 fs0 fc0 sc0 ls5">r</div><div class="t m3 x1c ha y110 ff1 fs4 fc0 sc0 ls5">c</div><div class="t m0 x25 h1 y10f ff1 fs0 fc0 sc0 ls5 ws1"> = razão volumétrica de compressão </div><div class="t m0 x1 h1 y111 ff1 fs0 fc0 sc0 ls5 ws1">R(s) = sinal de entrada </div><div class="t m0 x1 h1 y112 ff1 fs0 fc0 sc0 ls5 ws1">SI = ignição por centelha (spark ignition) </div><div class="t m0 x1 h1 y113 ff1 fs0 fc0 sc0 ls5 ws1">T = temperatura </div><div class="t m0 x1 h1 y114 ff1 fs0 fc0 sc0 ls5">T</div><div class="t m3 x25 ha y115 ff1 fs4 fc0 sc0 ls5">0</div><div class="t m0 x26 h1 y114 ff1 fs0 fc0 sc0 ls5 ws1"> = temperatura de referência </div><div class="t m0 x1 h1 y116 ff1 fs0 fc0 sc0 ls5">T</div><div class="t m3 x25 ha y117 ff1 fs4 fc0 sc0 ls5 ws3">ar</div><div class="t m0 x24 h1 y116 ff1 fs0 fc0 sc0 ls5 ws1"> = temperatura do ambiente </div><div class="t m0 x1 h1 y118 ff1 fs0 fc0 sc0 ls5 ws1">TS \u2013 diagrama temperatura - entalpia </div><div class="t m0 x1 h1 y119 ff1 fs0 fc0 sc0 ls5 ws1">UCE = unidade de controle eletrônico </div><div class="t m0 x1 h1 y11a ff1 fs0 fc0 sc0 ls5">U</div><div class="t m3 x23 ha y11b ff1 fs4 fc0 sc0 ls5">r</div><div class="t m0 x26 h1 y11c ff1 fs0 fc0 sc0 ls5 ws1"> = umidade relativa do ar </div></div><div class="pi" data-data='{"ctm":[1.000000,0.000000,0.000000,1.000000,0.000000,0.000000]}'></div></div>
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