汽车NVH正向设计中的系统模态匹配策略研究-陈剑

2010(32)5　　　AutomotiveEngineering2010(Vol.32)No.52010077NVH＊＊863(2006AA110101)(2009AKKG0221)。200977,2009911。陈　剑1,2,穆国宝1,2,张丰利3(1.合肥工业大学机械与汽车工程学院,合肥　230009;　2.安徽省汽车NVH工程技术研究中心,合肥　230009;3.徐州重型机械有限公司,徐州　221001)[]　,NVH,,,。:;NVH;;AStudyontheStrategyforModalMatchingBetweenSystemsinVehicleNVHTop-downDesignChenJian1,2,MuGuobao1,2ZhangFengli31.SchoolofMechanicalandAutomotiveEngineering,HefeiUniversityofTechnology,Hefei　230009;2.AutomotiveNVHEngineeringandTechnologyResearchCenterAnhuiProvince,Hefei　230009;3.XuzhouHeavyMachineryCo.,Ltd.,Xuzhou　221001[Abstract]　Thevibrationsinvarioussystemsofvehicleareanalyzed.ThestrategyandworkflowofmodalmatchingaresummarizedbasedonthevehicleNVHtop-downdesignflow.Thestrategyandworkflowareappliedtoanewcardevelopment,wellsolvingthemodalmatchingproblembetweenvarioussystems.Keywords:modalfrequency;NVH;top-downdesign;matching,,,。NVH,。,。[1]“V”NVH,6:(1),;(2)NVH;(3)NVH,;(4);(5);(6)。NVH,NVH———,。1　、3;、。,、、、,。。(1),5～20Hz;,200Hz,NVH。·370　　·　　　2010(32)5(2),,700～1000r/min,20～35Hz。,,10～80Hz[2]。,,。、。,[2]。,,。,,,。,、、、,5～80Hz。2　2.1　。5～80Hz,,。,,[3]。NVH,、、、。2.1.1　,,,,,[3]。,、、NVH、。。,,,。2.1.2　,,,。NVH。,,。,,[4]。2.1.3　,,、、。,,NVH,,NVH。2.1.4　,、,。NVH,:(1);(2),、。2.2　NVH,,1。、3,。2010(Vol.32)No.5,:NVH·371　　·1　3　,NVH。3.1　NVH,NVH、NVH,、、、、、、、[5],NVH,NVH,,1。2　3.2　,,,。2,·372　　·　　　2010(32)533.9Hz,46.73Hz。,35Hz,,、,,。、2。3,22.91Hz,2　/Hz·mm-1/Hz·mm-1/mm/mm/mm0.0553-0.4211.42×10-20.80.7020.7-0.327-7.13×10-22.38×10-310.8990.9B0.2181.177.77×10-31.51.3121.32.824.123.26×10-20.750.7020.7-0.1799.75×10-21.19×10-31.21.01212.371.721.45×10-20.80.7020.70.6980.4256.15×10-30.70.7020.7A0.3061.503.52×10-31.21.6011.6B0.2641.155.73×10-31.51.2811.32.02-1.39×10-34.72×10-31.51.5651.60.9171.41×10-34.39×10-31.20.9981,[6]。3　,CAE,。3.3　、,NVH。,,,。。(),,。(393)2010(Vol.32)No.5,:·393　　·。,。19。,,,。19　(R=500mm,L=876mm)4　(1)。。(2),R,19.34%。　　(3),。4.66%。(4)。(5),,20.59%。[1]　.[M].:,2005:25-55.[2]　WoodRichardM,BauerStevenXS.SimpleandLow-costAerody-namicDragReductionDevicesforTractor-TrailerTrucks[C].SAEPaper2003-01-3377.[3]　.[M].:,1998.[4]　SubrataRoy,PradeepSrinvasan.ExternalFlowAnalysisofaTruckforDragReduction[C].SAEPaper2000-01-3500.[5]　,,.[J].(),2008,38(1):12-16.[6]　.[M].:,2004:124.[7]　KhongeAshokD,JainSunilK,etal.SimulationoftheFlow-FiledAroundaGenericTractor-TrailerTruck[J].SAEPaper2004-01-1147.[8]　,,.[J].,2002,23(3):399-401.[9]　,,.[J].,2002,24(5):408-411.(372)4　,,。,,NVH,,(、、、、),。[1]　,,.NVH[J].,2007(7):3-5.[2]　.NVH[DB/OL].=22331extra=page%3D2.2006-8-15.[3]　,,.—[M].:,2006.[4]　.[M].:,2006.[5]　.NVH[C].LMS,2007.[6]　,,.[C].MSC,2007.