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Research on Data-Based Nonlinear Fault Prediction Methods in Multi-Transform Domains for Electromechanical Equipment

  • Xu Xiao-li 
  • Chen Tao 
  • Wang Shao-hong 
Conference paper

Abstract

Safety of equipment has significant impact on production and human resources as well as environment. Ensuring safe operation of equipment is an important problem faced. One of the important and difficult key technologies in guaranteeing equipment operation is fault prediction. In this paper, research on fault prediction methods based on field data mainly is carried out to achieve predictive maintenance for large rotating electromechanical equipment as most of its faults being trendy ones with long course characteristics. This paper studies new way to make fault prediction in multi-transform domains, perform feature frequency band decomposition based on wavelet packet or HHT, explore nonlinear dimension reduction method to extract fault sensitive characteristics, applies Elman neural network methods to perform nonlinear associative intelligent prediction based on historical and present fault sensitive characteristics so as to realize long course fault prediction. The research is important for large electromechanical equipment to achieve early fault prediction, guarantee safe operation, save maintenance costs, improve utilization, and implement scientific maintenance.

Keywords

Wavelet Packet Fault Prediction Wavelet Packet Transform Predictive Maintenance Nonlinear Manifold 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • Xu Xiao-li 
    • 1
    • 2
  • Chen Tao 
    • 1
  • Wang Shao-hong 
    • 1
    • 2
  1. 1.Beijing Institute of TechnologyBeijingChina
  2. 2.Beijing Information Science & Technology UniversityBeijingChina

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