The Fault Analysis of Gearbox Based on Time Delay Correlation Demodulation Technology

摘要：

　　Vibration analysis is an important mean for gear condition monitoring and fault diagnosis.This paper starts with the analysis on the characteristics of correlation function.It was found through theoretical analysis that the autocorrelation function does not change the modulation characteristics of the modulated signal,but has a significant characteristic of noise reduction.Thereby,the delay correlation demodulation method is established for the diagnosis of gear vibration fault.Implementation steps of this method are as follows: the first step is the autocorrelation analysis of the measured vibration signals; the second is the delay of autocorrelation function; the final step is the Hilbert transform demodulation of time-delayed autocorrelation function.

关键词： Gear Vibration analysis Fault diagnosis Time-delayed correlation demodulation

作者: LI Bing YANG Cheng ZHANG Lanyong

作者单位: College of Automation,Harbin Engineering University,Harbin 150001,Heilongjiang,China

会议类型: 国际会议

会议名称: The 33th Chinese Control Conference第33届中国控制会议

会议地点: 南京

会议语种:英文

页码: 7222-7225

在线出版日期: 2014-07-28（万方平台首次上网日期，不代表论文的发表时间）