基于经验模式分解和Teager能量谱的齿轮箱故障诊断

张德祥;汪萍;吴小培;高清维

振动与冲击 ›› 2010, Vol. 29 ›› Issue (7) : 109-111,.

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PDF(1188 KB)
振动与冲击 ›› 2010, Vol. 29 ›› Issue (7) : 109-111,.
论文

基于经验模式分解和Teager能量谱的齿轮箱故障诊断

  • 张德祥1;汪萍2;吴小培1;高清维1
作者信息 +

Gearbox Fault Diagnosis Based on Empirical Mode Decomposition and Teager Energy Spectrum

  • ZhANG De-xiang1; WANG Ping2; WU Xiao-pei1; GAO Qing-wei1
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摘要

在线监测汽车齿轮变速箱运转工作状态,及时发现齿轮箱的早期故障,对汽车运行的安全性有重要意义。本文利用经验模式分解和Teager能量谱对振动加速度传感器获取的齿轮箱振动信号进行特性分析。先利用经验模式分解获得故障信号的本征模式函数,然后计算本征模式函数Teager能量谱,提取本征模式函数系数-能量谱特征值来分析时频故障特性。仿真研究结果表明用Teager能量特征表达在故障定位和故障信息提取方面是可行的和有效的,提高了故障检测的可靠性。

Abstract

Abstract: It is significant for automobile security to study how to monitor operating state of automobile gearbox and detect incipient faults as soon as possible. Characteristics analysis for gearbox vibration signals captured from vibrating acceleration sensors based on empirical mode decomposition (EMD) and Teager energy spectrum was proposed. The fault detection signal was firstly decomposed into intrinsic mode functions (IMF) with the EMD method. Then, Teager energy spectrum of each intrinsic mode function was obtained using Teager energy operator. Finally, the time-frequency fault characteristics of a gearbox were analyzed by means of the coefficient-energy spectrum values of intrinsic mode functions. Experiment result has showed the feasibility and efficiency of the EMD and Teager energy characteristic method in fault location and fault information exstraction, and that the algorithm is very reliable to be implemented for fault detection.

关键词

经验模式分解 / Teager能量谱 / 齿轮箱 / 故障诊断

Key words

empirical mode decomposition(EMD) / Teager energy spectrum / gearbox / fault diagnosis

引用本文

导出引用
张德祥;汪萍;吴小培;高清维. 基于经验模式分解和Teager能量谱的齿轮箱故障诊断[J]. 振动与冲击, 2010, 29(7): 109-111,
ZhANG De-xiang;WANG Ping;WU Xiao-pei;GAO Qing-wei . Gearbox Fault Diagnosis Based on Empirical Mode Decomposition and Teager Energy Spectrum[J]. Journal of Vibration and Shock, 2010, 29(7): 109-111,

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