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Compound Fault Diagnosis of Gearbox Based on RLMD and SSA-PNN

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  • Shitong Liang
  • Jie Ma

Abstract

In order to solve the difficulty in the classification of gearbox compound faults, a gearbox fault diagnosis method based on the sparrow search algorithm (SSA) improved probabilistic neural network (PNN) is proposed. Firstly, the gearbox fault signal is decomposed into a series of product functions (PFs) by robust local mean decomposition (RLMD). Then, the permutation entropy of PFs, which contains much fault information, is calculated to construct the feature vector and input it into the SSA-PNN model. The experimental results show that compared with the traditional fault diagnosis methods based on EMD-BP and EEMD-PNN, the gearbox fault diagnosis method based on RLMD and SSA-PNN has higher diagnosis accuracy.

Suggested Citation

  • Shitong Liang & Jie Ma, 2021. "Compound Fault Diagnosis of Gearbox Based on RLMD and SSA-PNN," Mathematical Problems in Engineering, Hindawi, vol. 2021, pages 1-9, September.
    • Handle: RePEc:hin:jnlmpe:3716033
    DOI: 10.1155/2021/3716033
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