Spur Gear Crack Propagation Assessment Using Model-Based Analysis and Simulation

Abstract:

Model-based gear dynamic analysis and simulation has been a promising way for developing e®ective gearbox vibration monitoring approaches. In this paper, based on the dynamic model of a one-stage gearbox with spur gears and one tooth crack, we investigate statistical indicators and the discrete wavelet transform (DWT) technique to identify e®ective and sensitive health indicators for re°ecting the crack propagation level. Our results suggest that the root mean square (RMS) indicator is a good statistical indicator to re°ect the crack propagation in the early stage; DWT can improve the sensitivity of the RMS indicator and the RMS indicator becomes more sensitive with the increase of the DWT level.

• Periodical: Key Engineering Materials (Volumes 413-414)
• Pages: 299-304
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.413-414.299
• Online since: June 2009
• Authors: Zhi Gang Tian, Ming J. Zuo
• Keywords: Crack Propagation, Discrete Wavelet Transform (DWT), Gear Box, Root Mean Square (RMS), Spur Gear, Vibration Response Simulation

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