Replacement costs under warranty: Cost moments and time variability
Operations Research
International Journal of Systems Science
Dynamic optimisation of price, warranty length and production rate
International Journal of Systems Science
International Journal of Systems Science
A decision support model for warranty servicing of repairable items
Computers and Operations Research
Three m-failure group maintenance models for M/M/N unreliable queuing service systems
Computers and Industrial Engineering
Extended optimal replacement policy for a system subject to non-homogeneous pure birth shocks
Computers and Industrial Engineering
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This paper investigates the effects of a renewing free-replacement warranty (RFRW) on the age replacement policy for a repairable product with a general failure model. In the general model, there are two types of failure when the product fails. One is type I failure (minor failure), which can be removed by a minimal repair; and the other is type II failure (catastrophic failure), which can be removed only by a replacement. After a minimal repair, the product is operational but the failure rate of the product remains unchanged. For both warranted and nonwarranted products, cost models are developed, and the corresponding optimal replacement ages are derived such that the long-run expected cost rate is minimized. The impacts of the RFRW on the optimal replacement age are investigated analytically. Finally, numerical examples are given for illustration.