Journal of Applied Reliability (한국신뢰성학회지:신뢰성응용연구)
- Volume 7 Issue 2
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- Pages.57-72
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- 2007
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- 1738-9895(pISSN)
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- 2733-8320(eISSN)
A Study on Optimal Design of Accelerated Life Tests
가속수명시험의 최적 설계
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Jeong, Hai-Sung
(Dept. of Applied Statistics, Seowon University)
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정해성
(서원대학교 정보분석학과)
- Published : 2007.06.30
Abstract
This paper suggests an approach for using ALTA 7 PRO to design accelerated life test plans. Conducting a accelerated life test requires finding life distributions at different stress levels and determining an appropriate life-stress relationship. Moreover, a test plan needs to be developed. In its optimal test plan, stress levels are determined and the proportions of test units are assigned at each stress level so that asymptotic variance of the maximum likelihood estimate of a (log) percentile of the life distribution at the design stress is minimized. Examples are presented for usage.