Highlights Signal reconstruction method based on hybrid criteria for IMFs selection  is proposed. Novel efficient feature named WFWPDE is developed. Synchronous optimization strategy is proposed to optimize weights and SVM.

    Abstract As the passage for passengers to get on and off, train plug doors directly affect the operation efficiency of the train and the personal safety of passengers. This paper proposes a non-contact fault diagnosis method for train plug doors based on sound signals. First, empirical mode decomposition (EMD) is utilized to process the raw sound signals. A signal reconstruction method by selecting intrinsic mode functions (IMFs) using hybrid selection criteria is then proposed. Second, novel feature named weighted fractional wavelet packet decomposition energy entropy (WFWPDE) is developed by introducing the idea of fractional calculus and weight to wavelet packet decomposition energy entropy (WDPE). Third, a synchronous optimization strategy is proposed to optimize the weights and hyperparameters of support vector machine (SVM) synchronously. Finally, the superiority and feasibility of the proposed method are verified on field-collected data. By comparing with different fault diagnosis methods, the proposed method performs best on fault diagnosis of train plug doors, with accuracy of 97.87%.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Fault diagnosis for train plug door using weighted fractional wavelet packet decomposition energy entropy


    Contributors:
    Sun, Yongkui (author) / Cao, Yuan (author) / Li, Peng (author)


    Publication date :

    2021-12-21




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Rail defect diagnosis using wavelet packet decomposition

    Abbaszadeh, K. / Rahimian, M. / Toliyat, H.A. et al. | Tema Archive | 2002



    Industrial fault diagnosis: pneumatic train door case study

    Lehrasab, N. / Dassanayake, H. P. B. / Roberts, C. et al. | British Library Online Contents | 2002


    Industrial fault diagnosis: Pneumatic train door case study

    Lehrasab, N / Dassanayake, H. P. B. / Roberts, C et al. | SAGE Publications | 2002


    Industrial fault diagnosis: Pneumatic train door case study

    Lehrasab, N. / Dassanayake, H.P.B. / Roberts, C. et al. | Tema Archive | 2002