Systems Engineering and Electronics ›› 2023, Vol. 45 ›› Issue (2): 597-605.doi: 10.12305/j.issn.1001-506X.2023.02.33

• Reliability • Previous Articles    

Grey multi-index distortion prediction model of equipment component life extension

Qiang LI1, Sifeng LIU1,2,*   

  1. 1. College of Economic and Management, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
    2. Institute for Grey System Studies, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Received:2022-02-24 Online:2023-01-13 Published:2023-02-04
  • Contact: Sifeng LIU

Abstract:

Aiming at the problem of life extension prediction of equipment components, two abnormal distortion indexes of upper and lower limits are put forward firstly. And framework diagram and life extension prediction diagram of grey multi index life extension distortion prediction model are given. Secondly, the grey system method is used to build a two-stage grey prediction model. In the first stage, the grey upper and lower limit distortion prediction model is constructed to obtain the date of the next distortion; In the second stage, GM (1, 1) model is built to predict the life extension of equipment components and the abnormal values of upper and lower limit indicators. At the same time, the prediction accuracy of the model was tested and analyzed, and the life extension time of equipment components was determined according to the prediction results of the model. Finally, the effectiveness and feasibility of the model are verified by taking the semiconductor manufacturing equipment target life extension as an actual application case, which has important guiding significance for reasonable formulation of the optimal maintenance and replacement time of components and for reducing the operation and maintenance costs of enterprises.

Key words: equipment life extension, residual life, grey distortion prediction, semicoductor target material

CLC Number: 

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