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

被引：0

作者：

Li Bing ^{[1
]}

Yang Cheng ^{[1
]}

Zhang Lanyong ^{[1
]}

机构：

[1] Harbin Engn Univ, Coll Automat, Harbin 150001, Heilongjiang, Peoples R China

来源：

2014 33RD CHINESE CONTROL CONFERENCE (CCC) | 2014年

关键词：

Gear; Vibration analysis; Fault diagnosis; Time-delayed correlation demodulation;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

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.

引用

页码：7222 / 7225

页数：4

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