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스트레스에 의존하는 척도모수를 가진 대수정규 가속수명시험의 최적설계
박병구,윤상철,서호철,Park, Byung-Gu,Yoon, Sang-Chul,Seo, Ho-Cheol 한국데이터정보과학회 1996 한국데이터정보과학회지 Vol.7 No.1
This paper on planning constant accelerated life test is assumed that parameters for a lognormal life distribution are depended on changes of stresses. The proposed test plans are optimum in that they minimize the asymptotic variance of maximum likelihood estimator of a specified quantile at the design stress. The optimal amount of low stress level ${\xi}_{L}$ and optimal sample proportion ${\pi}$ to be allocated at low stress level are obtained when the ratio of scales at high stress level and design stress level is unknown.
쿨백-라이블러 정보함수 이용한 단계 스트레스 가속수명모형의 지수성 검정
박병구,윤상철 한국품질경영학회 2003 품질경영학회지 Vol.31 No.4
In this paper, we propose goodness of fit test statistics for exponentiality in accelerated life tests data based on Kullback-Leibler information functions. This acceleration model is assumed to be a tampered random variable model. The procedure is applicable when the exponential parameter using the data from accelerated life tests is or is not specified under null hypothesis. And we compare the power of the proposed test statistics with Kolmogorov-Smirnov, Cramer von Mises and Anderson-Darling statistics in the small sample.