MECHANICAL FAULT DIAGNOSIS BASED ON A NEW TIME-FREQUENCY DISTRIBUTION

Abstract

Abstract: A new time-frequency distribution (TFD) is proposed by designing a new kernel function , which is applied to mechanical fault diagnosis. Through diagnosing two faults and comparing with Winger-Ville distribution(WVD), the new distribution is found to have a high resolution and can suppress cross terms perfectly. In practice, this new distribution can reflect the characteristics of the mechanical faults, which the WVD and FFT cannot, and so a good method for faults diagnosis is put porward.

Key words: Fault diagnosis, Kernel function, Time-frequency distribution, WVD

CLC Number:

TN911.7 TH17

Wang Xinqing;Ma Ruiheng;Wang Yaohua;Yan Jun;Cai Ligen;Zeng Yonghua;Wang Yang. MECHANICAL FAULT DIAGNOSIS BASED ON A NEW TIME-FREQUENCY DISTRIBUTION[J]. , 2003, 39(7): 150-153.

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MECHANICAL FAULT DIAGNOSIS BASED ON A NEW TIME-FREQUENCY DISTRIBUTION

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