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ID:31458635
大小:1.15 MB
页数:7页
时间:2019-01-10
《engine noise synthesis based on cylinder pressure data》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、RESEARCHACOUSTICSAUTHORSENGINENOISESYNTHESISBASEDONCYLINDERPRESSUREDATANoisequalityevaluationsduringthecombustionprocessdevelopmentaredifficult.DIPL.-ING.In aFVVproject,amethodforutilisingthermodynamicdatatocreateanaudibleMICHAELKAUTHisResearchAssociateatenginenoisehasbeendevelopedattheInst
2、ituteforCombustionEnginesofthetheInstituteforCombustionEngines(VKA)attheRWTHAachenUniversity.Thus,anassessmentofthenoisequalityintheearlyRWTHAachenUniversitystagesoftheenginedevelopmentbecomespossiblewithouttheneedofdirect(Germany).NVH measurements.PROF.DR.-ING.STEFANPISCHINGERisDirectoroft
3、heInstituteforCombustionEngines(VKA)attheRWTHAachenUniversity(Germany).ALFORSCIENTIFICOVAPPRRTICFALOESLAINESMETZH.T
4、PEERREVIEW
5、DR.-ING.RRECEIVED2013-02-01.EYKLAUSPFLEIDERERVREVIEWED2013-03-27RITEWACCEPTED2013-07-13SUisLeadNoiseEngineerEDDNBIforDieselEnginesatYENDXPEHAAdamOpelAGinRTSFRARCOMR
6、ESERüsselsheim(Germany).DR.-ING.MARTINNIJSisChiefEngineerattheInstituteforCombustionEngines(VKA)attheRWTHAachenUniversity(Germany).581MOTIVATIONorwiththehelpofaccelerationsensors.Therearedifferentmeth-2MODELCONCEPTodsforthesuccessfulpredictionofnoiselevelsandsometimes3USEDDATABASEthespectra
7、lcompositionofthecombustionnoiseaswell[1-4].4NOISEPREDICTIONANDSYNTHESISThemethodscanbeimplementedinthemeasurementsystems5RESULTSofthethermodynamictestbenchesorintegratedintothemeas-6SUMMARYANDOUTLOOKurementchainintheformofadditionalhardwarecomponents.Apartfromthethermodynamicparameters,ani
8、ndexforthecharacterisationoftheacousticsisgeneratedtoallowanevalua-1MOTIVATIONtionofthedifferenttargetparameters.ThecurrentlyappliedproceduresonthebasisofthecylinderPassengercarsofallclasseshavebeenandarecontinuouslybeingpressuredatahaveincommonthatnoiselevelvaluesaregainedimprovedwithregar
9、dstoimpressionofthevehicles’qualityandasbaselinedataforthetotalnoise,thetotalcombustionnoiseorcomfort.Thenoisebehaviourofthevehiclesandinparticularthefortheirfrequencycomponents.However,thisonlyallowsalimitedcombustionenginesisacriticalaspect.Despitethes
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