基于极坐标增强的齿轮早期点蚀故障诊断

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Abstract The periodic transient impact effect of gear early fault is weak. In order to settle this problem, the method of polar coordinate enhancement based on Continuous Wavelet Transform is proposed. Because of the rotation feature of a running gear, time frequency distributions of several cycles obtained in rectangular coordinate are transformed to angular frequency distribution, then are mapped into polar coordinate plane. The experimental results show that the noise with no period is restrained, periodic transient impact feature of signal is enhanced, and the gear early pitting fault is diagnosed effectively.

Key words： gear early pitting polar coordinate;enhancement

Received: 25 July 2014 Published: 25 December 2015

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	Articles by authors
	YANG Qing-le
	ZHANG Ling-ling
	JIA Ji-de
	MEI Jian-min
	GENG Shuai

Cite this article:

YANG Qing-le,ZHANG Ling-ling,JIA Ji-de, et al. Gear Early Pitting Fault Diagnosis Based on Polar Coordinate Enhancement[J]. JOURNAL OF VIBRATION AND SHOCK, 2015, 34(24): 7-11.

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http://jvs.sjtu.edu.cn/EN/ OR http://jvs.sjtu.edu.cn/EN/Y2015/V34/I24/7

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