نتایج جستجو برای Flexible flow shop scheduling

تعداد نتایج: 403047  

and M. A. Beheshti Nia, I. Nakhaee, M.R. Amin Naseri,

In this paper, the problem of batch scheduling in a flexible flow shop environment is studied. It is assumed that machines in some stages are able to process a number of jobs simultaneously. The applications of this problem can be found in various industries including spring and wire manufacturing and in auto industry. A mixed integer programming formulation of the problem is presented and it i...

and M. A. Beheshti Nia, I. Nakhaee, M.R. Amin Naseri,

In this paper, the problem of batch scheduling in a flexible flow shop environment is studied. It is assumed that machines in some stages are able to process a number of jobs simultaneously. The applications of this problem can be found in various industries including spring and wire manufacturing and in auto industry. A mixed integer programming formulation of the problem is presented and it i...

2007
Tzung-Pei Hong, Pei-Ying Huang,

Scheduling is an important process widely used in manufacturing, production, management, computer science, and so on. Appropriate scheduling can reduce material handling costs and time. Finding good schedules for given sets of jobs can thus help factory supervisors effectively control job flows and provide solutions for job sequencing. In simple flow shop problems, each machine operation center...

H.R Dehnar Saidy, M.T Taghavi-Fard,

In this paper, an exact geometric algorithm is presented for solving two-job sequencing and scheduling problems in flexible flow shop and job shop environments while the resources are (un)available in some time periods and processors (un)availability is the same in all work centers. This study seems utterly new and it is applicable to any performance measure based on the completion time. The in...

Journal: :European Journal of Operational Research 2006
George J. Kyparisis, Christos Koulamas,

We consider the multistage flexible flow shop scheduling problem with uniform parallel machines in each stage and the objective of minimizing makespan. We develop a general class of heuristics for this strongly NP-hard problem that extend several well-known heuristics for the corresponding embedded serial flow shop problem, and obtain absolute performance guarantees for heuristics in this class...

2009
Xiaofeng Li, Hai Zhao,

Flexible flow shop scheduling problem (also called blended flow shop scheduling problem) is a sort of complex Job Shop Scheduling problem. For the Flexible Flow Shop scheduling problem, only in very special cases, there are polynomial optimal algorithms. In most of the other cases, the problems are NP-Hard. It is a simplification of the original problem to solve Flexible flow shop scheduling wi...

2009
Wang Shilong, Yao Wei,

This paper studies the single hoist scheduling problem in no-wait flexible flow shop system with constant process times. The objective is to minimize the make span in the given job tasks. Different jobs have different process routes and process times. When a job starts, workstation must be free to process the job, and as soon as it is finished, the hoist must be free to move it to the next work...

Journal: :مهندسی صنایع 0
علی عبدی, دکترای مهندسی عمران، دانشکده فنی¬ و م..., دانشجوی دکترای مهندسی صنایع، دانشکده ..., استاد مهندسی عمران، دانشکده فنی¬ و مه..., استاد مهندسی صنایع، پردیس دانشکده فنی..., استادیار مهندسی صنایع، دانشکده فنی¬وم...,

this research, for the first time presents the flexible flow shop model of scheduling method for considering runway assignment and operations planning together. one of the advantages of the developed model is considering the procedures of air routes in terminal airspace and separation between consecutive aircraft which is very similar to the real world condition. there are different objective f...

This study considers outsourcing decisions in a flexible flow shop scheduling problem, in which each job can be processed by either an in-house production line or outsourced. The selected objective function aims to minimize the weighted sum of tardiness costs, in-house production costs, and outsourcing costs with respect to the jobs due date. The purpose of the problem is to select the jobs tha...

Raviteja Buddala, Siba Sankar Mahapatra,

Flexible flow shop (or a hybrid flow shop) scheduling problem is an extension of classical flow shop scheduling problem. In a simple flow shop configuration, a job having ‘g’ operations is performed on ‘g’ operation centres (stages) with each stage having only one machine. If any stage contains more than one machine for providing alternate processing facility, then the problem...

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