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ID 20749
本文ファイル
著者
Azaron, Amir
Kato, Kosuke
キーワード
Reliability optimization
Stochastic networks
Shortest path
Optimal control
NDC
生物科学・一般生物学
抄録(英)
A new methodology for the reliability optimization of a k dissimilar-unit non-repairable cold-standby redundant system is introduced in this paper. Each unit is composed of a number of independent components with generalized Erlang distributions of lifetimes arranged in a series-parallel configuration. We also propose an approximate technique to extend the model to the general types of non-constant hazard functions. To evaluate the system reliability, we apply shortest path technique in stochastic networks. The purchase cost of each component is assumed to be an increasing function of its expected lifetime. There are multiple component choices with different distribution parameters available for being replaced with each component of the system. The objective of the reliability optimization problem is to select the best components, from the set of available components, to be placed in the standby system in order to minimize the initial purchase cost of the system, maximize the system MTTF (mean time to failure), minimize the system VTTF (variance of time to failure) and also maximize the system reliability at the mission time. The goal attainment method is used to solve a discrete-time approximation of the original problem.
掲載誌名
OR Spectrum
29巻
2号
開始ページ
235
終了ページ
257
出版年月日
2007-04
出版者
Springer
ISSN
0171-6468
NCID
出版者DOI
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
author
権利情報
Copyright (c) 2007 Springer "The original publication is available at www.springerlin.com"
関連情報URL
部局名
工学研究科