PSO-VMD结合Teager包络谱的滚动轴承故障诊断方法
Fault Diagnosis Method of Rolling Bearing Combining PSO-VMD with Teager Envelope Spectrum
边杰 1陈亚农 1梅庆 2卢艳辉3
作者信息
- 1. 中国航发湖南动力机械研究所,湖南 株洲 412002;中国航空发动机集团航空发动机振动技术重点实验室,湖南 株洲 412002
- 2. 中国航发商用航空发动机有限责任公司,上海 200241
- 3. 中国航发湖南动力机械研究所,湖南 株洲 412002
- 折叠
摘要
为了解决VMD方法在处理非平稳信号时,人为确定输入参数会影响模态分解精度的问题,提出一种基于PSO算法优化VMD输入参数的PSO-VMD方法,用于滚动轴承故障信号的模态分解,并使用Teager能量算子(TEO)对模态分解结果进一步计算,得到各模态分量的Teager包络谱.通过滚动轴承内环单点故障、外环单点故障和滚子单点故障实测振动故障信号的模态分解与故障诊断,验证PSO-VMD方法的有效性和实用性.
Abstract
In order to solve the problem that manually determining input parameters can affect the accuracy of modal decomposition when processing non-stationary signals by using the VMD method,a PSO-VMD method based on PSO algorithm to optimize VMD input parameters is applied to modal decomposition of rolling bearing fault signals.The Teager Energy Operator(TEO)is used to further calculate the results of modal decomposition and obtain the Teager envelope spectra of each modal component.The effectiveness and practicality of the PSO-VMD method are verified through the modal decomposition and fault diagnosis of vibration fault signals measured at single point faults of the inner ring,outer ring,and roller of rolling bearings.
关键词
VMD/PSO/滚动轴承/故障诊断/Teager包络谱Key words
VMD/PSO/rolling bearing/fault diagnosis/Teager evelope spectrum引用本文复制引用
基金项目
中国航空发动机集团有限公司科技创新平台项目(CXPT-2018-027)
出版年
2024
NETL
NSTL
维普
万方数据