Research on fault identification of gearbox bearing based on quantum theory

[摘要] In view of the problem that the fault signal of bearing in automobile gearbox is easy to be covered by background noise, a fault signal recognition method based on quantum theory is proposed. This method will quantize the individual sampling signal, and take the vibration signal as the state superposition of fault signal and background noise, deeply study the randomness and local characteristics of sampling signal, and analyze the core information of sampling point, so that the amplitude characteristics of sampling point signal can be converted into the probability distribution of fault signal and noise signal in quantum domain, and change integrated attenuation of noise reduction for the fault signal, and realize the fine quantization noise as well as the highlight of the fault information. Experimental results show that the algorithm is feasible and efficient.

[学科分类] 材料科学（综合）