混合动力轿车传动系的扭转振动与噪声分析  

Analyses on the Torsional Vibration and Noise of Transmission System in Hybrid Electric Cars

作　　者：邹良[1] 唐小林[1] 于海生[1,2] 张彤 张建武[1] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200240 [2]上海华普汽车有限公司,上海201501

出　　处：《汽车工程》2014年第6期709-714,共6页Automotive Engineering

基　　金：上海市青年科技启明星计划(B类)项目(11OB1402600);国家863计划项目(2010AA1122803001)资助

摘　　要：针对某深度混合动力轿车的传动系振动与噪声问题,对传动系统进行了扭转振动分析和噪声测试,识别出了噪声源。在考虑啮合刚度的齿轮副等效轴系模型基础上,建立了复合行星轮系和整车传动系统的扭转振动力学模型。对传动系的固有频率和模态振型进行了研究,并与噪声测试结果进行了对比。结果表明,齿轮副啮合是该传动系的主要噪声源,而扭转振动是引起传动系噪声的重要原因。Aiming at the vibration and noise problem of transmission system in a deep hybrid electric vehicle, the torsional vibration analysis and noise test of its transmission system are carried out with noise source identified. Based on the equivalent shafts model for gear pairs with consideration of engagement stiffness, dynamic models for the torsional vibration of compound planetary gear sets and transmission system are established. The natural frequencies and mode shapes of transmission system are analyzed and compared with the results of noise test. The results demonstrate that the source of noise in transmission system is the engagement of gear pairs while its important cause is torsional vibration.

关 键 词：混合动力轿车 扭转振动 噪声测试 固有频率 

分 类 号：U469.7[机械工程—车辆工程]