某乘用车动力总成悬置系统设计

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中图分类号：U463 文献标志码：A DOI：10.20104/j.cnki.1674-6546.20240301

【Abstract】Inorder to improve vibration isolation effectof NEV powertrain mounting system，this paper proposes design flowof passengervehiclepowertrainmountingsystem.Next，forthedesignobjectiveofapassengervhicle，adynamicmodelof powertrain mounting systemis establishedtoanalyze itsmodal frequencyand decouplingrate.Then，basedonthe mounting stifness，thethree-dimensionalnonlinearstiffesscurveof mounting isdesigned.Inherentfrequencyand strengthof the mountingbracketlstorderconstraint mode areobtained basedonthecalculationresultsofthe mounting system28 working conditions.The results indicate that this scheme meets requirement of design objective.

KeyWords： Powertrain，Mounting，Decoupling rate，Modal frequency

【引用格式】赵星辰，吕俊，尹立峰，等.某乘用车动力总成悬置系统设计[J].汽车工程师，2026（2）：33-40. ZHAO XC，LUJ，YINLF，etal.Design of a Passenger Vehicle Powertrain Mounting System[J].Automotive Engineer，2026（2）：33-40.

1前言

车辆的噪声主要来源于动力总成、传动机构、轮胎和车身振动等，汽车零部件的设计水平直接影响整车NVH性能。（剩余7055字）