Replacement Model Following the Expiration of NFRRW Jung, Ki-Mun;
This paper proposes a replacement policy following the expiration of a non-renewing free replacement-repair Warranty(NFFRW). The non-renewing free replacement-repair warranty is defined and then the maintenance model following the expiration of the NFRRW is studied from the user`s point of view. As the criteria to determine the optimality of the maintenance policy, we consider the expected cost rate per unit time from the user`s perspective. All maintenance costs of the system incurred after the expiration of the warranty are paid by the user. Given the cost structures during the life cycle of the system, we determine the optimal maintenance period following the expiration of a NFRRW. Finally, the numerical examples are presented for illustrative purposes.
Replacement model;expected cost rate per unit time;non-renewing free replacement warranty;non-renewing free minimal repair warranty;non-renewing free replacement-repair warranty(NFRRW);