Fault diagnosis of gearbox based on RBF-PF and particle swarm optimization wavelet neural network

  • Liu Yang
  • Hanxin Chen
S.I. : Emergence in Human-like Intelligence towards Cyber-Physical Systems


The gear cracks of gear box are one of most common failure forms affecting gear shaft drive. It has become significant for practice and economy to diagnose the situation of gearbox rapidly and accurately. The extracted signal is filtered first to eliminate noise, which is pretreated for the diagnostic classification based on the particle filter of radial basis function. As traditional error back-propagation of wavelet neural network with falling into local minimum easily, slow convergence speed and other shortcomings, the particle swarm optimization algorithm is proposed in this paper. This particle swarm algorithm that optimizes the weight values of wavelet neural network (scale factor) and threshold value (the translation factor) was developed to reduce the iteration times and improve the convergence precision and rapidity so that the various parameters of wavelet neural network can be chosen adaptively. Experimental results demonstrate that the proposed method can accurately and quickly identify the damage situation of the gear crack, which is more robust than traditional back-propagation algorithm. It provides guidances and references for the maintenance of the gear drive system schemes.


Particle swarm optimization Fault diagnosis Wavelet neural network Particle filter 



The project is supported by the National Natural Science Foundation of China (Grant no .61273176), Program for New Century Excellent Talents in University of Minister of Education of China (201010621237) and Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry(20091001).

Compliance with ethical standards

Conflict of interest

All authors declare that they have no conflict of interest.


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Copyright information

© The Natural Computing Applications Forum 2018

Authors and Affiliations

  1. 1.School of Mechanical and Electrical EngineeringWuhan Institute of TechnologyWuhanPeople’s Republic of China

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