Optimal design of reliability experiment based on the Wiener degradation model with covariates | Vestnik Tomskogo gosudarstvennogo universiteta. Upravlenie, vychislitelnaja tehnika i informatika – Tomsk State University Journal of Control and Computer Science. 2022. № 59. DOI: 10.17223/19988605/59/3

Optimal design of reliability experiment based on the Wiener degradation model with covariates

The Wiener degradation models with covariates are widely used for reliability analysis. In this paper, an algorithm for constructing an optimal design, which includes determining optimal stress levels, number of tested devices and time moments for measuring the degradation index, has been developed. The proposed algorithm is based on the optimization of some functional of the Fisher information matrix under restrictions on stress levels, experiment duration and minimum time interval between measurements of the degradation index. Moreover, the example of LED degradation analysis has been considered. Contribution of the authors: the authors contributed equally to this article. The authors declare no conflicts of interests.

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Keywords

Wiener degradation model, covariates, Fisher information matrix, optimal design, light-emitting diodes

Authors

Name	Organization	E-mail
Chimitova Ekaterina V.	Novosibirsk State Technical University	chimitova@corp.nstu.ru
Osintseva Evgeniia A.	Novosibirsk State Technical University	osinceva.j@gmail.com

Всего: 2

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