A general model for accelerated life testing with time-dependent covariates
學年 87
學期 2
出版（發表）日期 1999-04-01
作品名稱 A general model for accelerated life testing with time-dependent covariates
作品名稱（其他語言）
著者 徐煥智; Shyur, Huan-jyh; Elsayed, E. A.; Luxhoj, James T.
單位 淡江大學資訊管理學系
出版者 Wiley-Blackwell
著錄名稱、卷期、頁數 Naval Research Logistics 46(3), pp.303-321
摘要 This paper introduces a general or “distribution-free” model to analyze the lifetime of components under accelerated life testing. Unlike the accelerated failure time (AFT) models, the proposed model shares the advantage of being “distribution-free” with the proportional hazard (PH) model and overcomes the deficiency of the PH model not allowing survival curves corresponding to different values of a covariate to cross. In this research, we extend and modify the extended hazard regression (EHR) model using the partial likelihood function to analyze failure data with time-dependent covariates. The new model can be easily adopted to create an accelerated life testing model with different types of stress loading. For example, stress loading in accelerated life testing can be a step function, cyclic, or linear function with time. These types of stress loadings reduce the testing time and increase the number of failures of components under test. The proposed EHR model with time-dependent covariates which incorporates multiple stress loadings requires further verification. Therefore, we conduct an accelerated life test in the laboratory by subjecting components to time-dependent stresses, and we compare the reliability estimation based on the developed model with that obtained from experimental results. The combination of the theoretical development of the accelerated life testing model verified by laboratory experiments offers a unique perspective to reliability model building and verification.
關鍵字
語言 en_US
ISSN 0894-069X
期刊性質 國外
收錄於
產學合作
通訊作者
審稿制度 否
國別 USA
公開徵稿
出版型式 ,紙本
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/27405 )

機構典藏連結