نتایج جستجو برای: flexible job shop scheduling problem fjsp

تعداد نتایج: 1086441  

Journal: :Journal of physics 2023

Abstract The flexible job-shop scheduling problem (FJSP) is a critical model in manufacturing systems that assigns operations from different jobs to various machines. However, optimizing multiple targets during the production process always necessary. While non-dominated sorting genetic algorithm (NSGA-II) an effective method solve multi-objective FJSP, it can have main drawbacks of converging ...

2013
Neelesh Kumar Sharma

Flexible job-shop scheduling problem (FJSSP) is an extension of the classical job-shop scheduling problem that allows an operation to be processed by any machine from a given set along different routes. It is very important in both fields of production management and combinatorial optimisation. This paper presents a new approach based on attribute oriented mining technique to solve the multi-ob...

Journal: :Machines 2022

The flexible job shop scheduling problem (FJSP) is of great importance for realistic manufacturing, and the has been proven to be NP-hard (non-deterministic polynomial time) because its high computational complexity. To optimize makespan critical machine load FJSP, a discrete improved grey wolf optimization (DIGWO) algorithm proposed. Firstly, combined with random Tent chaotic mapping strategy ...

2005
ANTÓNIO FERROLHO

In this paper, scheduling problems in Flexible Manufacturing Cells (FMC) are studied. The scheduling objective is to minimize the makespan. We used a genetic algorithm (GA) for solving the optimization scheduling problem. We have developed one FMC with industrial characteristics with the objective of studying scheduling problems in these types of manufacturing systems (single machine scheduling...

2012
E. Moradi S.M.T. Fatemi Ghomi

Integrating flexible job-shop scheduling problem (FJSP) with preventive maintenance (PM) is pondered in this paper. Minimizing the makespan for scheduling part and minimizing the system unavailability for maintenance part are simultaneously under consideration. For doing it, the assignment of n jobs on m machines in production side and executing the PM actions at appropriate time intervals in m...

Journal: :Appl. Soft Comput. 2009
Li-Ning Xing Ying-Wu Chen Ke-Wei Yang

Flexible job shop schedule is very important in both fields of combinatorial optimization and production management. In this paper, a simulationmodel is presented to solve themulti-objective flexible job shop scheduling problem. The proposed model has been coded by Matlab which is a special mathematical computation language. After modeling the pending problem, the model is validated by five rep...

Journal: :Mathematical Problems in Engineering 2022

The nature of construction and formulation the multi-objective functions in flexible job shop (FJS) provides great insights about study technique mechanism scheduling helping to prioritize efforts for optimizing manufacturing execution performance, which draw focus researchers at home abroad. From perspective model, solution method objective function, this paper reviews analyzes related academi...

Journal: :European Journal of Operational Research 2010
L. De Giovanni Ferdinando Pezzella

The Distributed and Flexible Job-shop Scheduling problem (DFJS) considers the scheduling of distributed manufacturing environments, where jobs are processed by a system of several Flexible Manufacturing Units (FMUs). Distributed scheduling problems deal with the assignment of jobs to FMUs and with determining the scheduling of each FMU, in terms of assignment of each job operation to one of the...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم ریاضی و مهندسی کامپیوتر 1392

heuristics are often used to provide solutions for flow shop scheduling problems.the performance of a heuristic is usually judged by comparing solutions and run times on test cases.this investigation proposes an analytical alternative ,called asymptotic convergence ,which tests the convergence of the heuristic to a lower bound as problem size grows. the test is a stronger variation of worst cas...

Journal: :Intelligent Automation and Soft Computing 2022

An NP-hard problem like Flexible Job Shop Scheduling (FJSP) tends to be more complex and requires computational effort optimize the objectives with contradictory measures. This paper aims address FJSP combined objectives, minimization of make-span, maximum workload, total workload. proposes ‘Hybrid Adaptive Firefly Algorithm’ (HAdFA), a new enhanced version classic Algorithm (FA) embedded adapt...

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