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Start Over Author "WANG Qiang-feng" Journal journal of vibration engineering
1 results on '"WANG Qiang-feng"'

1. Diagnosis of bearing faults based on cross-terms time-frequency method.

Author

Yang Long-Xing, Jia Min-Ping, and Wang Qiang-Feng

Subjects
AMPLITUDE modulation, ELECTRONIC modulation, DISTRIBUTION (Probability theory), TIME-frequency analysis, DATA, MODULATION theory
Abstract

Since the bearing impact faults exhibit the non-stationary characteristics, the diagnostic method of time-frequency distribution is perhaps possessed of advantage. Based on Wigner-Ville cross-term distribution properties of amplitude modulation signal, this paper presents an approach of cross-terms false spectral energy to diagnose machinery faults, and the transmission band core function was designed to extract the cross-terms false spectral energy. Finally, the impact experimental data of bearing was given to show the approach availability. [ABSTRACT FROM AUTHOR]

Published
2008

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