表面波纹度激励下的滚动轴承非线性接触噪声分析  

Analysis of Noise due to Surface-Waviness Induced Nonlinear Contact in Rolling Bearing

作　　者：殷玉枫[1] 张闯[1] 

机构地区：[1]太原科技大学机电学院,太原030024

出　　处：《噪声与振动控制》2011年第1期43-47,共5页Noise and Vibration Control

基　　金：山西省自然科学基金资助项目(基金编号:2006011062)

摘　　要：滚动轴承的噪声对环境的影响一直是国内外工程界非常关注的问题。根据非线性力学和声辐射与传播理论,建立了滚动轴承在表面波纹度激励下的非线性接触噪声模型。对6202深沟球轴承进行了实例分析,研究了波纹度波数、初始幅值和最大幅值等参数变化对滚动轴承噪声声压级的影响。结果表明:波数与声压级存在着拟三角函数关系;声压级随着初始幅值的增加而变大;需要根据实际波数的情况采取不同的计算模型来确定最大幅值与声压级的关系。The affect of noise of rolling bearing is paid much attention in engineering industry.On the basis of the theories of nonlinear mechanics and noise radiation and propagation,a nonlinear contact acoustic model of rolling bearing with surface waviness is established.The 6202 ball bearing is analyzed as an example.The affects of the number of waves and the maximum and initial amplitudes of the surface waviness on sound pressure level（SPL） of rolling bearing are emphatically studied.The results show that there is a quasi-trigonometric functional relationship between SPL and the number of waves.The SPL increases with the increasing of the initial amplitude.Based on the number of waves,the relationship of SPL and the maximum amplitude can be determined.

关 键 词：声学 噪声 波纹度 非线性振动 数值分析 

分 类 号：TH133.3[机械工程—机械制造及自动化]