Warranty Cost Models for a Product Subject to Two Types of Failure

두 가지 고장(故障) 형태(形態)를 가진 제품(製品)에 대한 보증비용(保證費用) 모형(模型)

This paper is concerned with warranty cost models for a product with two types of failure ; type 1 failures corrected by minimal repair and type 2 failures removed only by replacement. Two warranty policies involving an initial free service period followed by a pro-rata period are considered ; the difference is whether the warranty is renewed or not when type 2 failure occures during its free service period. Expected warranty costs under the two policies are obtained, and their behaviors are examined for the case where type 1 and 2 failure distributions are Weibull and exponential, respectively.