摘要
汽车主减速器作为汽车后驱动桥的核心组件,承担着减速和增大驱动力矩的功能,其质量的好坏直接影响到汽车的安全性和舒适性。本文以阶次分析方法为核心,设计出基于虚拟仪器技术的后桥主减速器振动信号分析方法,信号由数据采集卡采集,通过USB总线传输到计算机,通过对转速信号的处理得到振动信号的重采样时刻点,对振动信号重采样并进行频谱分析得到振动信号的阶次谱,将阶次谱与原始振动信号频谱进行对比,得出清晰的频率成分,解决了转速的波动产生的"频率混叠"问题。
As the core component of automotive rear axle,the automotive main reducer undertake the function of slowdown and increase driving moment,its quality directly affects the safety and comfort of automotive.Taking the order analysis method as the core,the vibration signal analysis method of the automotive rear axle main reducer is designed based on the virtual instrument technology,the signal is collected by the data acquisition card and transmitted to the computer through the USB bus.The time point of vibration signal resampling is obtained through the processing of rotational speed signal,the order spectrum of the vibration signal is obtained by the frequency spectrum analysis of the vibration signal resampling,and the order spectrum is compared with the original vibration signal frequency spectrum,the clear frequency component is obtained,the problem of frequency alias produced by the speed fluctuation is solved.
出处
《机械传动》
CSCD
北大核心
2015年第4期115-119,共5页
Journal of Mechanical Transmission
关键词
阶次分析
插值处理
重采样
虚拟仪器
Order analysis Interpolation process Resampling Virtual instrument
作者简介
王建宝（1988－），男，山西朔州人，硕士研究生。
