Journal of Korean Institute of Industrial Engineers (대한산업공학회지)

Korean Institute of Industrial Engineers (대한산업공학회)
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Design of Accelerated Degradation Test with Tightened Critical Values under Random Coefficient Degradation Rate Model

확률계수 열화율 모형하에서 판정가속을 도입한 가속열화시험의 설계

  • Cho, You-hee (Korea Reliability Technology Service, Inc.) ;
  • Seo, Sun-keun (Department of Industrial & Management Systems Engineering, Dong-A University)
  • 조유희 ((주)한국 신뢰성기술서비스) ;
  • 서순근 (동아대학교 산업경영공학과)
  • Published : 2008.03.31
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Abstract

This paper presents accelerated degradation test plans considering adoption of tightened critical values. Under arandom coefficient degradation rate and log-linear acceleration models, the asymptotic variance of an estimatorfor a lifetime quantile at the use condition as the optimization criterion is derived where the degradation ratefollows a lognormal and Reciprocal Weibull distributions, respectively and then the low stress level andproportions ofunits allocated to each stress level are determined. We also show that the developed test plans canbe applied to the multiplicative model with measurement error.

Keywords

Acknowledgement

Supported by : 한국학술진흥재단

References

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