NDLI: Accelerated Life Test Plans for Predicting Warranty Cost

Content Provider	IEEE Xplore Digital Library
Author	Guangbin Yang
Copyright Year	1963
Abstract	Warranty is an important sales feature for many products, especially consumer products. Manufacturers usually want to predict the warranty cost as early as possible for various purposes. This can be done by using the accelerated life tests conducted in the early stages of the product life cycle. This paper describes a method for predicting the warranty cost, and its confidence interval for a product population that will experience varying stress levels in the field. The paper also presents 3-level best compromise accelerated life test plans. The plans choose the optimal values of the low stress level and the corresponding sample allocation to minimize the asymptotic variance of the maximum likelihood estimate of the warranty cost. An application example is presented to illustrate the test plans. The test plans are robust against the misspecification of the warranty length, and other parameters.
Sponsorship	IEEE Reliability Society
Starting Page	628
Ending Page	634
Page Count	7
File Size	365095
File Format	PDF
ISSN	00189529
Volume Number	59
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-12-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Stress Warranties Maximum likelihood estimation Costing Life estimation warranty cost Accelerated life test minimal repair non-homogeneous Poisson process test plan
Content Type	Text
Resource Type	Article
Subject	Safety, Risk, Reliability and Quality Electrical and Electronic Engineering

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