A model for selecting suitable dispatching rule in FMS based on fuzzy multi attribute group decision making

摘要

Flexible manufacturing systems (FMSs) have received increasing attention in recent decades as they conduct manufacturing in most productive and effective way, but productive output of such a system is closely related to internal and external criteria. FMS scheduling is the most affected area by these criteria, therefore, selecting appropriate and suitable scheduling types or dispatching rules, with respect to system criteria, is a crucial decision point for decision makers. According to the literature, many papers and researches have published to handle this problem in different methods such as mathematical programming, simulation, heuristic, and other similar techniques, but utilization of most of these methods is generally time-consuming, complex with some problems while performing, especially at a condition that a system requires decision making by a group of experts with a range of varied criteria. According to these issues, in this paper, fuzzy multi attribute decision making approach is used to develop a combined fuzzy analytical hierarchical process and fuzzy technique for order of preference by similarity to ideal solution group decision making model. This model is developed in three main stages and 13 steps and considers a group of decision makers' evaluations to select the most suitable dispatching rule among a set of alternatives, with respect to real time criteria. Applying this model is simple, fast and considers all decision criteria and prevents system tardiness and idle time.