State Monitoring of Gear Tooth Subject to Varying Work Conditions

Abstract:

The gear box diagnosis work has received considerable attention in recent years. But diagnosis work on gear box subject to varying work condition hasnt got much attention. A diagnosis and state monitor method based on vibration signal is proposed in this paper. The signal is de-nosied by SVD (singular value decomposition). Then specific frequency band is extracted by wavelet transform. Normal state and failure state is seperated by dimensionless time-indexes. Finally, health index of gear tooth used to monitor gear state is calculated by regularization. Simulate signal and experiment signal are presented to illustrate the implementation of the method. The result shows that, wavelet transform can extract the specific frequency band; pulse index and margin index can diagnosis tooth failure under varying work conditions. Gear tooth health index can be used to monitor gear tooth state.

• Periodical: Applied Mechanics and Materials (Volume 329)
• Pages: 167-171
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.329.167
• Online since: June 2013
• Authors: Huan Zhi Feng, Wei Liang, Lai Bin Zhang, Wen Qing Lu
• Keywords: Gear Box, Health Index, State Monitoring, Tooth Failure, Varying Work Conditions

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