Solving a Joint Availability-Redundancy Optimization Model with Multistate Components and Metaheuristic Approach
Subject Areas : International Journal of Industrial MathematicsA. H. Borhani Alamdari‎‎‎ 1 , M. Sharifi 2
1 - Department of Industrial and Mechanical Engineering, Qazvin Branch, Islamic Azad University, Qazvin, Iran.
2 - Department of Industrial and Mechanical Engineering, Qazvin Branch, Islamic Azad University, Qazvin, Iran.
Keywords: بهینه‌سازی قابلیت اطمینان, تابع مولد جهانی, الگوریتم شبیه سازی تبرید, اجزای چند حالته, مشکلات تخصیص افزئنگی, الگوریتم ژنتیک,
Abstract :
مشکل تخصیص افزونگی (RAP) یکی از مهمترین و کاربردی ترین مسائل در زمینه قابلیت اطمینان است. هدف از این مشکل یافتن پیکربندی مطلوب اجزای سیستم به منظور بهینه سازی قابلیت اطمینان سیستم تحت برخی محدودیتها است. در مدل کلاسیک، اجزای مولفه سیستم باینری است، به عنوان مثال، هر مولفه آن است که آیا جزء در حال کار است یا هراب شده است. در مطالعات جدید تحقیقاتی، اجزاء به عنوان اجزاء چند حالته در نظر گرفته می شوند، به عنوان مثال، هر جزء میتواند برخی از حالتهای عملکردی بینابینی از سالم تا خراب را دارا باشد. در این مقاله، ما بر روی مسئله RAP با اجزاء چند حالته کار کرده و نرخ عملکرد اجزاء در هر یک از حالتهای عملکردی با صرف هزینه و انجام فعالیتهای فنی و سازمانی قابل افزایش میباشد. به دلیل آنکه مسئله تخصیص افزونگی از جمله مسائل سخت میباشد، ما برای حل مدل ارائه شده از دو الگوریتم فراابتکاری ژنتیک و شبیه سازی تبرید استفاده کرده و همچنین از تابع مولد عمومی برای محاسبه قابلیت اطمینان سیستم استفاده کردهایم.
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