کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11004076 | 1468191 | 2018 | 38 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Optimal replacement policy under a general failure and repair model: Minimal versus worse than old repair
ترجمه فارسی عنوان
سیاست جایگزینی بهینه تحت یک مدل شکست و تعمیر عمومی: حداقل در برابر بدتر از تعمیرات قدیمی
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کلمات کلیدی
نگهداری، فرآیند عمومی کلیدی، بدتر از حداقل تعمیر، سیاست مطلوب،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
چکیده انگلیسی
We analyze the optimal replacement policy for a system subject to a general failure and repair model. Failures can be of one of two types: catastrophic or minor. The former leads to the replacement of the system, whereas minor failures are followed by repairs. The novelty of the proposed model is that, after repair, the system recovers the operational state but its condition is worse than that just prior to failure (worse than old). Undertrained operators or low quality spare parts explain this deficient maintenance. The corresponding failure process is based on the Generalized Pólya Process which presents both the minimal repair and the perfect repair as special cases. The system is replaced by a new one after the first catastrophic failure, and also undergoes two sorts of preventive maintenance based on age and after a predetermined number of minor failures whichever comes first. We derive the long-run average cost rate and study the optimal replacement policy. Some numerical examples illustrate the comparison between the as bad-as-old and the worse than old conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Reliability Engineering & System Safety - Volume 180, December 2018, Pages 362-372
Journal: Reliability Engineering & System Safety - Volume 180, December 2018, Pages 362-372
نویسندگان
F.G. BadÃa, M.D. Berrade, Ji Hwan Cha, Hyunju Lee,