نتایج جستجو برای: family setup times

تعداد نتایج: 780130  

Journal: :J. Scheduling 2006
J. J. Yuan Zhaohui Liu C. T. Ng T. C. Edwin Cheng

In this paper we consider the single machine batch scheduling problem with family setup times and release dates to minimize makespan. We show that this problem is strongly NP-hard, and give an O n n m + 1 m time dynamic programming algorithm and an O(mk k P 2k−1) time dynamic programming algorithm for the problem, where n is the number of jobs, m is the number of families, k is the number of di...

Journal: :Computers & OR 2009
Shih-Wei Lin Kuo-Ching Ying Zne-Jung Lee

The broad applications of cellular manufacturing make flowline manufacturing cell scheduling problems with sequence dependent family setup times a core topic in the field of scheduling. Due to computational complexity, almost all published studies focus on using permutation schedules to deal with this problem. To explore the potential effectiveness of treating this argument using non-permutatio...

Journal: :Applied Mathematics and Computation 2007
Erdal Erel Jay B. Ghosh

We consider a situation where C customers each order various quantities (possibly zero in some cases) of products from P different families, which can be produced on a continuously available machine in any sequence (requiring a setup whenever production switches from one family to another). We assume that the time needed for a setup depends only on the family to be produced immediately after it...

Journal: :JORS 2012
R. Zheng H. Li X. Zhang

We consider the problem of scheduling n jobs on an unbounded batching machine that can process any number of jobs belonging to the same family simultaneously in the same batch. All jobs in the same batch complete at the same time. Jobs belonging to different families cannot be processed in the same batch, and setup times are required to switch between batches that process jobs from different fa...

Journal: :Computer systems science and engineering 2023

The two-stage hybrid flow shop problem under setup times is addressed in this paper. This NP-Hard. on the other hand, studied modeling different real-life applications especially manufacturing and high performance-computing. Tackling kind of requires development adapted algorithms. In context, a metaheuristic using genetic algorithm three heuristics are proposed These approximate solutions opti...

Journal: :TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C 1979

The job shop scheduling problem (JSP) is one of the most difficult problems in traditional scheduling because any job consists of a set operations and also any operation processes by a machine. Whereas the operation is placed in the machine, it is essential to be considering setup times that the times strongly depend on the various sequencing of jobs on the machines. This research is developed ...

Journal: :iranian journal of operations research 0
m.b. fakhrzad yazd,pejoohesh street,hidusterial eng. leila emami yazd,pejoohesh street,hidusterial eng.

this paper presents a new mathematical model for a bi-objective job shop scheduling problem with sequence-dependent setup times that minimizes the weighted mean completion time and the weighted mean tardiness time. for solving this multi-objective model, we develop a fuzzy multi-objective linear programming (fmolp) model. in this problem, a proposed fmolp method is applied with respect to the o...

Journal: :journal of modern processes in manufacturing and production 2014
abolfazl adressi reza bashirzadeh vahid azizi saeed tasouji hassanpour

different manufacturing enterprises use regularly scheduling algorithms in order to help meeting demands over time and reducing operational costs. nowadays, for a better useofresources and manufacturingin accordance withcustomer needs and given the level ofcompetitionbetweencompanies, employing asuitablescheduling programhasa double importance. conventional productionmethods are constantly subs...

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