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Acta Armamentarii ›› 2015, Vol. 36 ›› Issue (11): 2164-2172.doi: 10.3969/j.issn.1000-1093.2015.11.022

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Optimization Strategy of Preventive Maintenance in Finite Time Horizon

GAI Jing-bo1, KONG Yao2   

  1. (1.College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, Heilongjiang, China;2The 54th Research Institute, China Electronics Technology Group Corporation, Shijiazhuang 050081, Hebei, China)
  • Received:2014-11-18 Revised:2014-11-18 Online:2016-02-02
  • Contact: GAI Jing-bo E-mail:gaijingbo@hrbeu.edu.cn

Abstract: Mechanical devices are repairable. Taking an effective preventive maintenance and reasonably arranging the preventive maintenance activities are very important to decrease the failure frequency and improve the utilization ratio. The mechanical device working in finite time horizon is studied. Maintenance cost and comprehensive consideration of maintenance cost and reliability are modeled, a nonlinear optimization software is used to solve the optimization model, and the optimal times and cycles of preventive maintenance in finite time horizon are determined. The examples show that the method of forecasting the preventive maintenance frequency and cycle is feasible. This optimization policy model can provide references for making the preventive maintenance program and predicting the service life of mechanical devices.

Key words: ordnance science and technology, preventive maintenance, maintenance strategy, optimization

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