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Han Zhennan
Gear Research Institute,
Taiyuan University of Technology,
Taiyuan 030024, China
Xiong Shibo
Research Institute of Mechano-
electronic Engineering,
Taiyuan University of Technology,
Taiyuan 030024, China
Li Jinbao
Gear Research Institute,
Taiyuan University of Technology,
Taiyuan 030024, China |
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DETECTION OF INCIPIENT LOCALIZED
GEAR FAULTS IN GEARBOX BY
COMPLEX CONTINUOUS WAVELET
TRANSFORM*
Abstract:
As far as the vibration signal processing is concerned, composition of vibration signal resulting from incipient localized faults in gearbox is too weak to be detected by traditional detecting technology available now. The method, which includes two steps: vibration signal from gearbox is first processed by synchronous average sampling technique and then it is analyzed by complex continuous wavelet transform to diagnose gear fault, is introduced. Two different kinds of faults in the gearbox, i.e. shaft eccentricity and initial crack in tooth fillet, are detected and distinguished from each other successfully.
Key words: Gear transmission Fault diagnosis Synchronous
average sampling technique Complex continuous wavelet transform
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