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田 雄1,2,李宏成1,2,吕先锋1,2,毕金亮1,2,唐 禹1,2(1.,401120;2.,401120):,。,,,,,。:;;;:TB534:A:1004-4523(2010)06-0642-07 ,,NVH,,NVHNVH。NVH、、,,。,:,;,、;,、。MarceloMagalha~es,LeeSKNVH,,NVH[1,2]。GregoryPRuhlander、,、[3]。,,,(),(、)。,,,,。1 1.1 ,。、,,,。,,(、、),。1,,,,236201012振 动 工 程 学 报JournalofVibrationEngineeringVol.23No.6Dec.2010:2010-08-05;:2010-10-14(),。1 ,40~80Hz,,1200~2400r/min。,,,,。,,,。2,2(a),1750r/min,3300rad/s2;2(b),1500~2000r/min,1750r/min。2(a)2(b),。1.2 ,x(t),y(t),H(f),Y(f)=H(f)X(f) X(f)x(t),Y(f)y(t)。,,[5,7]。,2 。,,[4]。,:、、(),(air-bornenoise);、、,,(structure-bornenoise)[5,6]。,,,。3。1.3 ,,。,(TL)643 6 ,: 3 。1.3.1 整车传声损失(TL)试验32。,,3,、、;,2,。()4,,LAvg=10lg1n∑n10Ln/10(1) LAvg,n,,,。TLTL=Lout1-Lin1(2) Lout1,Lin1。1.3.2 结构传递声与空气辐射声对比,,,LAir=Lout2-TL(3) LAir,Lout2。,,()LStr=10lg10Lin2/10-10LAir/10(4) LStr,Lin2。2 2.1 ,(WOT),;(LOT)。1。1 WOTLOT57.57.547.574.5884.588:1500~2400r/min2.2 ,,4。4 TL,。,。,644 23 1500~2400r/min(),400~2000Hz。5400~2000Hz,31/3。,,,。,。2.3 、、,,5 400~2000Hz。2.3.1 悬置系统试验分析,(、、),。66 、、X,Y,Z(X,Y,Z,、、)645 6 ,: 、、,,400~2000Hz,。2.3.2 拉索类传递路径试验分析,(、、)。7(、、)。,1500~2500r/min(FLR)2dB(A),(FRR)3dB(A),8dB(A),。7 2.3.3 变速器壳体对车内噪声声振传函(NTF)试验分析,(、、),。,NTF。8(、、)NTF。NTF,:NTF、,,,,,NTF≤55dB/N。8 NTFNTF,,,、。(20dB(A)),,,;,,,NTF。99 NTF646 23 NTF,9(a),,NTF10dB(A),7dB(A);9(b),3dB(A),。,。2.4 10(WO)。:,400~2000Hz、,。。10 3 (1)、,。 (2),,。(3),,,CAE,,,。:本文在完稿过程中,得到了庞剑博士的悉心指导,在此谨向庞剑博士致以深深的谢意!:[1] MarceloMagalha~es,FábioArruda,Joa~oASFilho.DrivelineStructure-BorneVibrationandNoisePathAnalysisofanAWDVehicleUsingFiniteElements[R].PaperSAE2003-01-3641.[2] LeeSK.Identificationofavibrationtransmissionpathinavehiclebymeasuringvibrationalpowerflow[J].ProceedingsoftheInstitutionofMechanicalEngineers,PartD,JournalofAutomobileEngineering,2004,218,(2):167—175.[3] GregoryPRuhlander.DeformationofNVHMaterialsUsedinTransmissionShiftCableSystemsthroughTheirLifeCycle[R].PaperSAE2006-01-0707.[4] ,,.[J].,2009,31(4):537—542.[5] ,.[A].[C].2010:727—733.[6] .[D].:,2008.[7] ,.[M].:,2005.647 6 ,: AstudyontransmissionrattlenoiseoptimizationbasedontransferpathtestanalysisTIANXiong1,2,LIHong-cheng1,2,LU¨Xian-feng1,2,BIJin-liang1,2,TANGYu1,2(1.ChanganAutoGlobalR&DCenter,Chongqing401120,China;2.StateKeyLaboratoryofVehicleNVHandSafetyTechnology,Chongqing401120,China)Abstract:Thepaperdealswithatestandanalysismethodfortransmissionrattlenoisebasedonstructuraltransferpaths.Thetestresultsforavehicleshowthatthetransmissionhasseriousrattlephenomenon.Structuralpaths,includingshiftcableandclutchcable,areidentifiedasthemajornoisetransferpathsfortherattlenoise.Themethodprovidesawaytoimprovetransmissionrattleforthisvehicleandgoodperformanceisachieved.Keywords:rattlenoise;torsionalvibration;structuraltransferpathucture;cables:(1985—),,。:(023)67921245;E-mail:tian168-001@163.com648 23
本文标题:基于传递路径试验分析的变速器敲击噪声优化_田雄
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