کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1150469 | 957938 | 2009 | 17 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Optimal step-stress testing for progressively Type-I censored data from exponential distribution Optimal step-stress testing for progressively Type-I censored data from exponential distribution](/preview/png/1150469.png)
In this paper, a k -step-stress accelerated life-testing is considered with an equal step duration ττ. For small to moderate sample sizes, a practical modification is made to the model previously considered by Gouno et al. [2004. Optimal step-stress test under progressive Type-I censoring. IEEE Trans. Reliability 53, 383–393] in order to guarantee a feasible k -step-stress test under progressive Type-I censoring, and the optimal ττ is determined under this model. Next, we discuss the determination of optimal ττ under the condition that the step-stress test proceeds to the k -th stress level, and the efficiency of this conditional inference is compared to that of the previous case. In all cases considered, censoring is allowed at each point of stress change (viz., iτiτ, i=1,2,…,ki=1,2,…,k). The determination of optimal ττ is discussed under C-optimality, D-optimality, and A-optimality criteria. We investigate in detail the case of progressively Type-I right censored data from an exponential distribution with a single stress variable.
Journal: Journal of Statistical Planning and Inference - Volume 139, Issue 5, 1 May 2009, Pages 1782–1798