TY - JFULL AU - Wen Liang Chang PY - 2012/1/ TI - A Study of Replacement Policies for Warranty Products with Different Failure Rate T2 - International Journal of Industrial and Manufacturing Engineering SP - 2851 EP - 2854 VL - 6 SN - 1307-6892 UR - https://publications.waset.org/pdf/8180 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 72, 2012 N2 - This paper provides a replacement policy for warranty products with different failure rate from the consumer-s viewpoint. Assume that the product is replaced once within a finite planning horizon, and the failure rate of the second product is lower than the failure rate of the first product. Within warranty period (WP), the failed product is corrected by minimal repair without any cost to the consumers. After WP, the failed product is repaired with a fixed repair cost to the consumers. However, each failure incurs a fixed downtime cost to the consumers over a finite planning horizon. In this paper, we derive the model of the expected total disbursement cost within a finite planning horizon and some properties of the optimal replacement policy under some reasonable conditions are obtained. Finally, numerical examples are given to illustrate the features of the optimal replacement policy under various maintenance costs. ER -