中国机械工程 ›› 2013, Vol. 24 ›› Issue (3): 355-359.

• 信息技术 • 上一篇    下一篇

基于遗传算法的差值形态滤波尺度参数优化方法研究

吕博;张永祥;柯维   

  1. 海军工程大学,武汉,430033
  • 出版日期:2013-02-10 发布日期:2013-02-27
  • 基金资助:
    国家自然科学基金资助项目(50979109)
    National Natural Science Foundation of China(No. 50979109)

#br# Research on Measure Parameter Optimization Method of a Difference Morphological Filtering Based on Genetic Algorithm

Lü Bo;Zhang Yongxiang;Ke Wei   

  1. Navel University of Engineering,Wuhan,430033
  • Online:2013-02-10 Published:2013-02-27
  • Supported by:
    National Natural Science Foundation of China(No. 50979109)

摘要:

针对使用差值形态滤波提取故障特征时结构元素难以确定的情况,对尺度参数实行优化从而寻求其最佳尺度。首先对滚动轴承信号进行降噪处理,之后对信号进行差值形态滤波提取故障信号,通过遗传算法寻找到了结构元素尺度的最优解。通过仿真和试验研究表明,该方法取得的效果优于非优化的处理效果和包络解调法。

关键词: 形态滤波;遗传算法, 结构元素;故障诊断

Abstract:

Scale parameters were optimized to search the best scale, which was due to the construction element was hard to be determined when fault characteristics were extracted using a difference morphological filtering. The noise in antifriction bearing signals was reduced, the fault signals were extracted through the difference morphological filtering, and then the best results of construction element scales were gotten through genetic algorithm. The experimental and simulation results show the new method presented herein is better than the method without optimization and the envelope demodulation method.

Key words: morphological filtering, genetic algorithm;structural element, fault diagnosis

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