圆锥滚子轴承预紧力对变速器啸叫噪声的影响分析  

Analysis of Effect of Taper Roller Bearing Preload on Gear Whine in Manual Transmission

作　　者：张靖[1] 陈兵奎[1] 吴长鸿 李朝阳[1,3] 

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400030 [2]浙江双环传动机械股份有限公司,台州317600 [3]浙江大学流体动力与机电系统国家重点实验室,杭州310028

出　　处：《中国机械工程》2013年第11期1453-1458,共6页China Mechanical Engineering

基　　金："十一五"国家科技支撑计划资助项目(2011BAF09B07);流体动力与机电系统国家重点实验室开放基金资助项目(GZKF-201005)

摘　　要：基于仿真分析和实验方法研究了轴承预紧力对汽车变速器啸叫噪声的影响,建立了六挡机械式变速器动力学仿真模型,分析了副轴-后轴承采用不同的预紧力对系统动力学性能的影响,主要考察了传动误差激励、动态啮合力和轴承力变化,获得了不同的箱体动态响应。利用阶次跟踪方法进行实验,分析了不同预紧条件下的振动加速度和声压级水平。结果表明:采用合理的预紧力时,增大轴承刚度有助于抑制变速器啸叫噪声的产生,仿真分析与实验结论一致。Based on simulation analysis and experimental study, the effects of bearing preload on the whine noise in auto transmission was investigated. Firstly a fully parametric dynamic simulation model of six-speed manual transmission gearbox was set up, overall dynamic performance under dif- ferent bearing preloads on countershaft was analyzed, analyses were mainly focused on the transmis- sion error excitation, dynamic meshing force and bearing force change and dynamic response on hous- ing. Using order tracking method, vibration acceleration and sound pressure level were investigated by experiments. The results show that： utilizing reasonable preload to increase bearing stiffness will help to control the transmission whine noise generation, and simulation and experimental results show good agreement.

关 键 词：轴承预紧力 啸叫噪声 传动误差 阶次跟踪 

分 类 号：TH243[机械工程—机械制造及自动化]