Journal of shanghai Jiaotong University (Science) ›› 2015, Vol. 20 ›› Issue (4): 495-499.doi: 10.1007/s12204-015-1656-1

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An Interval Algorithm of Maintenance Windows Under Uncertain Parameters

An Interval Algorithm of Maintenance Windows Under Uncertain Parameters

WEN Liang1,2* (温 亮), WU Su1 (吴 甦), JIA Xi-sheng2 (贾希胜)   

  1. (1. Department of Industrial Engineering, Tsinghua University, Beijing 100084, China; 2. Department of Management Engineering, Mechanical Engineering College, Shijiazhuang 050003, China)
  2. (1. Department of Industrial Engineering, Tsinghua University, Beijing 100084, China; 2. Department of Management Engineering, Mechanical Engineering College, Shijiazhuang 050003, China)
  • Published:2015-08-05
  • Contact: WEN Liang (温 亮) E-mail:lwenmark@163.com

Abstract: For improving the method of finding maintenance windows under uncertain parameters, an algorithm of maintenance window under uncertainties is presented using interval analysis and sensitivity analysis. Age replacement model is selected to demonstrate how to use this new algorithm. Considered the uncertainties, the optimal maintenance interval of preventive maintenance is not only a single value, but a possible range. The requirement from maintenance engineers is also considered, the maintenance window is made as a symmetrical interval format, like (100 ± 10) day. Comparing with the methods using in the literatures, the new algorithm is without requirement of distribution assumption of uncertain parameter values and computer simulation.

Key words: maintenance optimization| uncertainty| interval analysis| maintenance window

摘要: For improving the method of finding maintenance windows under uncertain parameters, an algorithm of maintenance window under uncertainties is presented using interval analysis and sensitivity analysis. Age replacement model is selected to demonstrate how to use this new algorithm. Considered the uncertainties, the optimal maintenance interval of preventive maintenance is not only a single value, but a possible range. The requirement from maintenance engineers is also considered, the maintenance window is made as a symmetrical interval format, like (100 ± 10) day. Comparing with the methods using in the literatures, the new algorithm is without requirement of distribution assumption of uncertain parameter values and computer simulation.

关键词: maintenance optimization| uncertainty| interval analysis| maintenance window

CLC Number: