Journal of Systems Engineering and Electronics ›› 2011, Vol. 33 ›› Issue (11): 2449-2452.doi: 10.3969/j.issn.1001-506X.2011.11.20

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Optimal replacement policies for degenerative repairable systems based on delayed geometric process

HUANG Ao-lin1,2, LI Qing-min1, RUAN Min-zhi1, MAO De-jun1   

  1. 1. Department of Weaponry Engineering, Naval University of Engineering, Wuhan 430033, China; 2. College of Electronic Engineering, Naval University of Engineering, Wuhan 430033, China
  • Online:2011-11-25 Published:2010-01-03

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Abstract:

A delayed geometric process is proposed after studying the general geometric process methods used in replacement policies modeling for degenerative repairable systems. A system is supposed to be returned to the “as good as former” state with probability p and returned to the “worse” state with probability q. The average cost rate of the system is given under policy N based on the delayed geometric process, and the optimal replacement policy is derived. Numerical examples are also used to validate the replacement policy after comparison with that under the general geometric process.

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