نتایج جستجو برای: flexible manufacturing system fms
تعداد نتایج: 2375299 فیلتر نتایج به سال:
A tool for performance evaluation will be presented in this paper. The tool is named BAL and is based on the timed process algebra BTC incorporating resources as well. BAL begins by first making the syntactic analysis of the system specification, and then draws up its relevant transition graph by applying the rules of the operational semantics and solves a performance optimization problem relev...
The performance of a flexible manufacturing system (FMS) depends on the equipment efficiency and process control. In order to increase the equipment efficiency, the failure mode analysis and fault diagnosis can be used to reduce the frequency of unexpected breakdowns of machines. In addition, the statistical process control (SPC) can be used for adjusting the process parameters to eliminate pro...
In this paper an association between Petri nets (PN) and cellular automata (CA) is proposed to analyze the global dynamics of flexible manufacturing systems (FMS). This relation is carried out taking into account the discreteness in the dynamics of both PN and CA. In particular, generalized PN as well as one-dimensional CA are used. The work consists in modeling with PN both a single process wi...
Flexible manufacturing systems (FMS) require efficient scheduling strategies to achieve their principal advantage of being able to combine high flexibility with high productivity. This paper presents a novel constraint programming (CP) formulation addressing the FMS scheduling problem for systems that work under the operational policy of part movement. The formulation addresses some critical fe...
The increased use of flexible manufacturing systems (FMS) to efficiently provide customers with diversified products has created a significant set of operational challenges. Although extensive research has been conducted on design and operational problems of automated manufacturing systems, many problems remain unsolved. In particular, the scheduling task, the control problem during the operati...
It will be described a case study in the context of Continuous Education in New Manufacturing Systems. In the case study the term New Manufacturing Systems will be restricted to Flexible Manufacturing Systems context. The term Continuous Education will be analyzed as one six years experience in teaching and researching activities at post-graduation level at the cefet-pr.cpgei. The education-res...
Abstract The present study proposes a hybrid framework combining multiple methods to determine the optimal values of design variables in flexible manufacturing system (FMS). uses multi-objective response surface methodology (RSM) achieve optimum performance. performance an FMS is characterized using various weighted measures best–worst method (BWM). Subsequently, RSM approximates functional rel...
Much research has been addressed to nonblocking supervisory control of Discrete-Event Systems (DES) such as Flexible Manufacturing Systems (FMS), and a variety of approaches have been developed. One especially powerful approach, due to Chuan Ma, is based on DES representation by means of State Tree Structures (STS). Using STS, this chapter develops nonblocking supervisory control of a well-know...
Flexible Manufacturing System (FMS) offers opportunities for manufacturers to improve their technology, competitiveness, and profitability through a highly efficient and focused approach to manufacturing effectiveness. Data envelopment analysis (DEA) has been utilized as a multiple criteria tool for evaluation of FMSs. The concept of the assurance region (AR) is restricting the ratio of any two...
This paper focus on the problem of simultaneous scheduling of machine and automated guided vehicle (AGV) in a flexible manufacturing system (FMS) so as to minimize the makespan The FMS scheduling problem has been tackled by various traditional optimization techniques. While these methods can give an optimal solution to small-scale problems, different scheduling mechanisms are designed to genera...
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