کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9663865 1446246 2005 18 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Using repair priorities to reduce stock investment in spare part networks
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر علوم کامپیوتر (عمومی)
پیش نمایش صفحه اول مقاله
Using repair priorities to reduce stock investment in spare part networks
چکیده انگلیسی
In this paper, we examine the impact of repair priorities in spare part networks. Several heuristics for assigning priorities to items as well as optimising stock levels are developed, extending the well-known VARI-METRIC method. We model repair shops by multi-class, multi-server priority queues. A proper priority setting may lead to a significant reduction in the inventory investment required to attain a target system availability (usually 10-20%). The saving opportunities are particularly high if the utilisation of the repair shops is high and if the item types sharing the same repair shop have clearly different characteristics (price, repair time). For example, we find an investment reduction of 73% for a system with single server repair shops with an utilisation of 0.90 that handle five different item types.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Operational Research - Volume 163, Issue 3, 16 June 2005, Pages 733-750
نویسندگان
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