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المؤلفSleptchenko, Andrei
المؤلفvan der Heijden, Matthieu
تاريخ الإتاحة2021-09-05T05:40:17Z
تاريخ النشر2016
اسم المنشورReliability Engineering and System Safety
المصدرScopus
الرقم المعياري الدولي للكتاب9518320
معرّف المصادر الموحدhttp://dx.doi.org/10.1016/j.ress.2016.04.006
معرّف المصادر الموحدhttp://hdl.handle.net/10576/22713
الملخصWe consider a "k-out-of-N"? system with different standby modes. Each of the N components consists of multiple part types. Upon failure, a component can be repaired within a certain time by switching the failed part by a spare, if available. We develop both an exact and a fast approximate analysis to compute the system availability. Next, we jointly optimize the component redundancy level with the inventories of the various spare parts. We find that our approximations are very accurate and suitable for large systems. We apply our model to a case study at a public organization in Qatar, and find that we can improve the availability-to-cost ratio by reducing the redundancy level and increasing the spare part inventories. In general, high redundancy levels appear to be useful only when components are relatively cheap and part replacement times are high.
راعي المشروعThis publication was made possible by the NPRP award [NPRP 7-308-2-128] from the Qatar National Research Fund (a member of The Qatar Foundation). The statements made herein are solely the responsibility of the author(s).
اللغةen
الناشرElsevier Ltd
الموضوعAvailability
k-out-of-N systems
Maintenance
Spare parts
العنوانJoint optimization of redundancy level and spare part inventories
النوعArticle
الصفحات64-74
رقم المجلد153
dc.accessType Abstract Only


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