Application of lifting wavelet and random forest in compound fault diagnosis of gearbox

Tang Chen; Yulian Cui; Fuzhou Feng; Chunzhi Wu

doi:10.1117/12.2317655

5 March 2018 Application of lifting wavelet and random forest in compound fault diagnosis of gearbox

Tang Chen, Yulian Cui, Fuzhou Feng, Chunzhi Wu

Proceedings Volume 10710, Young Scientists Forum 2017; 107102A (2018) https://doi.org/10.1117/12.2317655
Event: Young Scientists Forum 2017, 2017, Shanghai, China

Abstract

Aiming at the weakness of compound fault characteristic signals of a gearbox of an armored vehicle and difficult to identify fault types, a fault diagnosis method based on lifting wavelet and random forest is proposed. First of all, this method uses the lifting wavelet transform to decompose the original vibration signal in multi-layers, reconstructs the multi-layer low-frequency and high-frequency components obtained by the decomposition to get multiple component signals. Then the time-domain feature parameters are obtained for each component signal to form multiple feature vectors, which is input into the random forest pattern recognition classifier to determine the compound fault type. Finally, a variety of compound fault data of the gearbox fault analog test platform are verified, the results show that the recognition accuracy of the fault diagnosis method combined with the lifting wavelet and the random forest is up to 99.99%.

Citation Download Citation

Tang Chen, Yulian Cui, Fuzhou Feng, and Chunzhi Wu "Application of lifting wavelet and random forest in compound fault diagnosis of gearbox", Proc. SPIE 10710, Young Scientists Forum 2017, 107102A (5 March 2018); https://doi.org/10.1117/12.2317655

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