Iranian Journal of Operations Research

fa A Bi-objective Model for Cellular Manufacturing System Considering Worker Skills, Part Priorities,and Equipment Levels Mathematical Modeling and Applications of OR Mathematical Modeling and Applications of OR پژوهشی Original Here, a new mathematical model for cellular manufacturing systems considering three important features of part priority, levels of machine’s technology, and the operator’s skill is developed. Simultaneous consideration of these features provides a more realistic analysis of the problems in cellular manufacturing systems. A model with multiple design features including cell formation, human resources flexibility with different skills, machines flexibility, operational sequence, processing time, and the capacity of machine and manpower is proposed in this article. Ourfocus is on the design of cells to implementtwo dissimilar goals. The first goal is the reduction of inter-cellular movements of parts and workers. The second goal is the creation of efficient cellsby making cell’s quality level identical for produced products so that the production of all the different parts have good quality. Two approaches of augmented ε-constraint and non-dominated sorting genetic algorithm II (NSGA-II) are used to solve this model. By comparison of these two approaches, we realizethat the multi-objective evolutionary optimization algorithm creates a Pareto-optimal front in a reasonable amount of time forlarge-scale problems Cellular manufacturing system,Worker skills,Equipment levels,Part priorities,Augmented ε-constraint,NSGA-II 18 39 http://iors.ir/journal/browse.php?a_code=A-10-12-8&slc_lang=fa&sid=1 Mahdi Saadat مهدی سعادت mahdi.saadat92@yahoo.com 1111111111 1111111111 No Mazandaran University of Science and Technology دانشگاه علوم و فنون مازندران Iraj Mahdavi ایرج مهدوی irajarash@rediffmail.com 1111111111 1111111111 No Mazandaran University of Science and Technology دانشگاه علوم و فنون مازندران Mohammad Mahdi Paydar محمد مهدی پایدار Paydar@nit.ac.ir 1111111111 1111111111 Yes Babol Noshirvani University of Technology, دانشگاه صنعتی نوشیروانی Sara Firouzian سارا فیروزیان sara.firouzian@yahoo.com 1111111111 1111111111 No Mazandaran University of Science and Technology دانشگاه علوم و فنون مازندران