Hello! I am only starting to study GRP (General Renewal Process), so sorry, if my question will be too simple -:). Main expression for GRP is A[i] - A[i-1] = q*(S[i] - S[i-1]), where A is Virtual Age, S is Real Time and q is restoration factor. It is clear (???), that this formula also proved for non-constant restoration factor q[i] – e.g., q[i] = q_CM for Corrective Maintenance and q[i] = q_PM for Preventive Maintenance. But I see some collision, if sometimes q[i] = 0 (e.g., q_PM = 0). On the one hand, q[i] = 0 means, that it is replacement (Good as New) and in this case the Aging is absent, i.e. A[i] = 0. On the other hand, according above formula, A[i] = A[i-1] and it isn't 0, because q[i-1] =/= 0. What is your opinion?
I think these links can be useful for you :
http://www.weibull.com/hotwire/issue77/relbasics77.htm
http://www.reliawiki.org/index.php/Imperfect_Repairs
https://arxiv.org/ftp/arxiv/papers/1006/1006.3718.pdf
Dear Rezaeipour Davood , thanks a lot for your answer! It is very helped me. Regards, Sergey.
http://forestsclearance.nic.in/writereaddata/public_display/circulars/01_IIFM_NPV_07NOV.pdf
https://www.researchgate.net/topic/Preventive-Maintenance
Dear Himadri Nath Saha , thanks a lot for your answer! It is very helped me. Regards, Sergey.
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