• CN:11-2187/TH
  • ISSN:0577-6686

›› 2001, Vol. 37 ›› Issue (3): 106-108,.

• 论文 • 上一篇    下一篇

基于跟踪比较反馈滤波下有源结构故障噪声检测方法研究

吴长智;杨庆佛;杨崇艳   

  1. 太原理工大学计算中心
  • 发布日期:2001-03-15

METHOD RESEARCH OF FAULT NOISE DETECTION OF ACTIVE STRUCTURE BASED ON TRACKING COMPARISON AND FEEDBACK FILTERING

Wu Changzhi;Yang Qingfo;Yang Chongyan   

  1. Taiyuan University of Technology
  • Published:2001-03-15

摘要: 对有源结构交变噪声辐射机理进行分析,提出了一种在线分离检测故障噪声的新方法。在耦合声场中,采用跟踪比较、反馈滤波技术,对箱体中传动部件早期故障进行诊断。作为实例,对CT6140主轴箱辐射噪声进行在线分离检测,从而诊断出传动部件存在的早期故障,并对故障模式进行分析。为在强耦合噪声背景下获取被测声源数据开辟了一条新的试验途径。

关键词: 反馈滤波, 跟踪比较, 故障诊断, 噪声模态

Abstract: The radiation mechanism of coupling noise is analysed, which radiates from an active structure. A new method is presented which is used to separate and detect radiation noise onlinearly. In coupling noise field, the tracking comparison and feedback filtering are applied to diagnose initial stage fault of transmission parts in spindle box. As a practical example, the noise radiated from CT6140 spindle box is separated and detected onlinearly. The noise modal is suppressed and restructured. The initial stage fault is diagnosed which exists in transmission parts. The fault model is analysed. So, a new test way starts, in which the noise signal is collected easily from strong coupling noise.

Key words: Fault diagnosis, Feedback filtering, Noise modal, Tracking comparison

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