1、沈陽理工大學(xué)碩士學(xué)位論文基于底盤測(cè)功機(jī)的發(fā)動(dòng)機(jī)振動(dòng)系統(tǒng)試驗(yàn)研究姓名：王宏偉申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：車輛工程指導(dǎo)教師：王靈犀20110306沈陽理工大學(xué)碩士學(xué)位論文AbstractTheanalysisstudyoftheinlinefourcylinder’svibrationwasdoneinthispaper.theshockreductiontheisolationoftheenginewerefinishedbytheanaly

2、sisofthetestdatawhichwasusedtograspthevibrationsituationoftheengine.Notonlywastheenginebodyitselfbutalsotheothermachinepartsancillaryequipmentencouragedbythevibrationoftheenginewhichaffectthepassengers’comftdrivingsafety

3、ridingcomft.theanalysisevaluationoftheresearchexperimentoftheenginevibrationwasfinishedtoprovideevidenceftheshockabsptionisolation.Twoexperimentsweredonewiththeinlinefourcylindergasolineengine.Inthefirsttesttheenginewaso

4、peratingathighloadinthechassisdynamometer.BythataccelerationdatawastestedatdifferentspeedswhichwereprocessedtotimedomainanalysisfrequencydomainanalysisbySignalProcessingToolboxofMATLABsoftwaretograspthevibrationoftheengi

5、ne(includingtheverticalhizontalaxialsituationofdifferentvibrationintensityatdifferentspeedstheengine’smaininterference’sders).Alloftheseareusedtoprovidethedatainfmationfstructuralmodificationsoptimizationmanufacturingpro

6、ductionprocessofenginesystem.Inthesecondtesttheenginewasoperatingatlightloadtoacquittheaccelerationdataatdifferentspeedsthentransfmedintoangularvelocitysignalsaccelerationsignals.Theangularvelocitytheangularaccelerationc