بهینه سازی مساله قابلیت اطمینان- افزونگی با استفاده از استرتژی فعال و ذخیره-سرد با رویکرد اعدادفازی مثلثی

نوع مقاله : مقاله پژوهشی

نویسندگان

1 مجتمع دانشگاهی مدیریت ومهندسی صنایع، دانشگاه صنعتی مالک اشتر، تهران، ایران

2 مجتمع دانشگاهی مدیریت و مهندسی صنایع ،تهران ،ایران

3 مجتمع دانشگاهی مدیریت و مهندسی صنایع، دانشگاه صنعتی مالک اشتر

4 دانشکده صنایع، دانشگاه صنعتی مالک اشتر، تهران، ایران

چکیده

امروزه با پیچیده تر شدن سیستم ها مفهوم قابلیت اطمینان و بهینه سازی مورد پژوهش و بررسی قرار گرفته است. در مراحل اولیه‌ی طراحی سیستم بسیاری از ویژگی‌های سیستم عدم قطعیت همراه است. از ان جا که استفاده از رویکرد احتمالی در حل مسائل قابلیت اطمینان دارای محدودیت هایی است و لذا استفاده از رویکرد فازی برای حل مسائل بهینه‌سازی قابلیت اطمینان بسیار کاراتر است. یکی از راه های بهینه‌سازی قابلیت اطمینان تخصیص افزونگی است. در پژوهش حاضر، مساله‌ی تخصیص قابلیت اطمینان – افزونگی با دو استراتژی فعال و استراتژی ذخیره- سرد با رویکرد اعداد فازی مثلثی در استفاده از پارامترهای توابع خرابی و محاسبه‌ی قابلیت اطمینان مورد بررسی قرار گرفته است. برای حل مساله‌ی فوق از الگوریتم ژنتیک استفاده گردیده است. نتایج حاصل با نتایج حاصل از حل به روش دقیق مقایسه شده و از نتایج حاصل از حل مدل قطعی بسیار کاراتر است.

کلیدواژه‌ها

عنوان مقاله [English]

Optimizing reliability-redundancy problem with active and cold-standby strategy with triangular fuzzy number approach

نویسندگان [English]

  • maryam Ganji 1
  • Mohammad Hossein karimi Gavareshki 2
  • Jafar Gheidar-Kheljani 3
  • Morteza Abbasi 4
1 Management and Industrial Engineering Department , Maleke-Ashtar University of Technology, Tehran ,Iran
2 Management and Industrial Engineering Department, Maleke-Ashtar University of Technology, Tehran ,Iran
3 Management and Industrial Engineering Department, Malek Ashtar University of Technology
4 Department of Industrial Engineering, Malek Ashtar University of Technology, Tehran, Iran
چکیده [English]

application of Reliability can be seen in many industrial, communication, In the early stages of system design, many system features such as reliability, weight, cost, and etc are associated with uncertainty due to various reasons such as lifespan, operational conditions, etc. Since the use of the probabilistic approach in solving reliability problems has limitations and can only be used in quantitative analysis of information and in many cases does not produce useful and sufficient results for experts, therefore the use of the approach Fuzzy is much more efficient for solving reliability optimization problems. One of the ways to optimize the reliability is to allocate redundancy. When using redundant components in a subsystem, how the redundant components are used is particular importance. In reliability-redundancy allocation problems, the reliability of components is not known in advance and is considered as a decision variable. In the current research, the reliability-redundancy allocation problem has been investigated with two active and cold-standby redundancy strategies and the triangular fuzzy number approach has been used in using the parameters of probability functions and reliability calculation in two model problems and an industrial system. Genetic algorithm has been used to solve the problem. In the implementation of the genetic algorithm, the the random, tournament and roulette wheel methods has been used to select parents and different types of mutation and crossover operators have been used to produce children. The results are more efficient than the results obtained from solving the deterministic model.

کلیدواژه‌ها [English]

  • Reliability-redundancy allocation problem
  • triangular fuzzy numbers
  • Genetic algorithm
  • active strategy
  • cold -standby strategy

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نشریه علمی پژوهشی مهندسی و مدیریت کیفیت
دوره 13، شماره 1
خرداد 1401
صفحه 17-42

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