Fault diagnosis of planetary gearbox based on order analysis

WANG Kuang,WANG Ke-sheng,ZUO Ming-jian

Journal of Vibration and Shock ›› 2016, Vol. 35 ›› Issue (5) : 140-145.

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PDF(1877 KB)
Journal of Vibration and Shock ›› 2016, Vol. 35 ›› Issue (5) : 140-145.

Fault diagnosis of planetary gearbox based on order analysis

  • WANG Kuang,WANG Ke-sheng,ZUO Ming-jian
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Abstract

Planetary gearbox starts, stops and load changes may cause variations of rotational speed. Frequency modulation or non-stationarity of resultant vibration signals from planetary gear system are, therefore, rendered. Characteristic vibration featuresfrom planetary gearbox is complex due to the complexity of structures. The combination of non-stationary vibration signals as well as complex characteristic vibration features bring tremendous difficulties for planetary gear system fault diagnostics. In this paper, Order tracking method is introduced to planetary sun gear fault detection under speed variation conditions, theoretically characteristic orders to speed-varying planetary gearbox are summarized.  Comparisons between traditional frequency domain methods with order tracking method are made experimentally. The results shows that order tracking method are effective in fault diagnostics under speed varying conditions of planetary gearbox. 
 

Key words

order tracking / planetary gearbox / nonstationary / fault diagnosis

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WANG Kuang,WANG Ke-sheng,ZUO Ming-jian. Fault diagnosis of planetary gearbox based on order analysis[J]. Journal of Vibration and Shock, 2016, 35(5): 140-145

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