RV减速器振动特性的自相关分析

为研究RV-40E减速器振动特征的相关性，解析振动信号中特征频率，利用精密减速器综合测试平台对RV减速器进行定速、升速和降速测试，采集不同转速下的振动信号。通过MATLAB进行数据处理，对各转速下的振动信号做频域分析和自相关分析。研究发现，RV减速器自相关性随转速增大而增强；在降速和升速过程中，自相关不具有周期性；一级和二级传动啮合频率对减速器运行影响较大。本研究可为RV减速器的故障诊断提供有效手段。

Autocorrelation analysis of vibration characteristics of RV reducer

In order to study the correlation of vibration characteristics of RV-40E reducer and analyze the characteristic frequency of vibration signals, the RV reducer was tested at constant speed, increasing speed and decreasing speed by using the comprehensive test platform of precision reducer, and the vibration signals at different speeds were collected. Through data processing with MATLAB, the frequency domain analysis and autocorrelation analysis of vibration signals at each speed are carried out. It is found that the autocorrelation of RV reducer increases with the increase of rotating speed. The autocorrelation does not have periodicity in the process of deceleration and acceleration. The meshing frequency of the primary and secondary drives has a great influence on the operation of the reducer. This study can provide an effective means for fault diagnosis of RV Reducer.