کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
806215 1468217 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimization of test and maintenance of ageing components consisting of multiple items and addressing effectiveness
ترجمه فارسی عنوان
بهینه سازی تست و نگهداری اجزای پیری که شامل موارد متعدد و اثربخشی رسیدگی می شود
کلمات کلیدی
عدم دسترسی؛ هزینه ها؛ بهینه سازی چندهدفه؛ موارد متعدد؛ تعمیرات ناکافی؛ فواصل تست؛ فاصله تعمیر و نگهداری
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
چکیده انگلیسی


• New approach for RAM modelling.
• Equipment ageing and maintenance effectiveness and testing efficiency explicitly in RAM models.
• Equipment consisting of multiple ítems.
• Multiple objective optimization problem (MOP) under unavailability and cost criteria.
• Simultaneous optimization of testing and maintenance intervals.

There are many models in the literature that have been proposed in the last decades aimed at assessing the reliability, availability and maintainability (RAM) of safety equipment, many of them with a focus on their use to assess the risk level of a technological system or to search for appropriate design and/or surveillance and maintenance policies in order to assure that an optimum level of RAM of safety systems is kept during all the plant operational life. This paper proposes a new approach for RAM modelling that accounts for equipment ageing and maintenance and testing effectiveness of equipment consisting of multiple items in an integrated manner. This model is then used to perform the simultaneous optimization of testing and maintenance for ageing equipment consisting of multiple items. An example of application is provided, which considers a simplified High Pressure Injection System (HPIS) of a typical Power Water Reactor (PWR). Basically, this system consists of motor driven pumps (MDP) and motor operated valves (MOV), where both types of components consists of two items each. These components present different failure and cause modes and behaviours, and they also undertake complex test and maintenance activities depending on the item involved. The results of the example of application demonstrate that the optimization algorithm provide the best solutions when the optimization problem is formulated and solved considering full flexibility in the implementation of testing and maintenance activities taking part of such an integrated RAM model.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Reliability Engineering & System Safety - Volume 153, September 2016, Pages 151–158
نویسندگان
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