4.7 Article

A novel deep autoencoder feature learning method for rotating machinery fault diagnosis

Journal

MECHANICAL SYSTEMS AND SIGNAL PROCESSING
Volume 95, Issue -, Pages 187-204

Publisher

ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ymssp.2017.03.034

Keywords

Deep autoencoder; Feature learning; Fault diagnosis; Maximum correntropy; Artificial fish swarm algorithm

Funding

  1. National Natural Science Foundation of China [51475368]
  2. Aviation Science Foundation of China [20132153027]
  3. Shanghai Engineering Research Center of Civil Aircraft Health Monitoring Foundation of China [GCZX-2015-02]
  4. Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University [CX201710]

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The operation conditions of the rotating machinery are always complex and variable, which makes it difficult to automatically and effectively capture the useful fault features from the measured vibration signals, and it is a great challenge for rotating machinery fault diagnosis. In this paper, a novel deep autoencoder feature learning method is developed to diagnose rotating machinery fault. Firstly, the maximum correntropy is adopted to design the new deep autoencoder loss function for the enhancement of feature learning from the measured vibration signals. Secondly, artificial fish swarm algorithm is used to optimize the key parameters of the deep autoencoder to adapt to the signal features. The proposed method is applied to the fault diagnosis of gearbox and electrical locomotive roller bearing. The results confirm that the proposed method is more effective and robust than other methods. (C) 2017 Elsevier Ltd. All rights reserved.

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