Order Bi-coherence Spectrum Based Gear Fault Detection During Speed-up

摘要：

The vibration signals of a gearbox during speed-up or speed-down have important reference information of this equipment. Therefore, the information of the vibration signals in this stage is very helpful to detect the faults of a gearbox. The order tracking technique is combined with bi-coherence spectrum and then the order bi-coherence spectrum analysis technique is presented. Firstly, the vibration signal is sampled at constant time increments and then uses software to resample the data at constant angle increments. Therefore, the time domain transient signal is transformed into angle domain stationary one. In the end, the re-sampled signals are processed by bi-coherence spectrum analysis. The experimental results show that order bi-coherence spectrum can effectively diagnosis the gear faults.

关键词： Faults diagnosis Gear Order tracking Bi-coherence spectrum Signal processing

作者: LI Hui ZHANG Yuping ZHENG Haiqi

作者单位: Department of Electromechanical Engineering, Shijiazhuang Institute of Railway Technology, Shijiazhuang 050041 P.R. China

会议类型: 国际会议

会议名称: 第七届国际测试技术研讨会

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-05（万方平台首次上网日期，不代表论文的发表时间）