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THE GENERAL LOT SIZING AND SCHEDULING PROBLEM WITH SEQUENCE DEPENDENT CHANGEOVERS.

2005
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Release : 2005
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Book Synopsis THE GENERAL LOT SIZING AND SCHEDULING PROBLEM WITH SEQUENCE DEPENDENT CHANGEOVERS. by :

Download or read book THE GENERAL LOT SIZING AND SCHEDULING PROBLEM WITH SEQUENCE DEPENDENT CHANGEOVERS. written by . This book was released on 2005. Available in PDF, EPUB and Kindle. Book excerpt: In this study, we consider the General Lot Sizing and Scheduling Problem in single level capacitated environments with sequence dependent item changeovers. Process industries may be regarded as suitable application areas of the problem. The focus on capacity utilization and intensively time consuming changeovers necessitate the integration of lot sizing and sequencing decisions in the production plan. We present a mathematical model which captures the essence of cases in the most generic and realistic setting of the problem. We discuss the impact and validity of some of the assumptions commonly encountered in the related literature. We also represent the problem using an alternative formulation and attempt to enhance the formulations with the use of some additional inequalities. Finally, we develop a heuristic by restricting the number of possible changeovers. Computational results are discussed.

Lot-Sizing and Scheduling for Flexible Flow Lines

2012-09-14 Business & Economics
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Release : 2012-09-14
Genre : Business & Economics
Kind : eBook
Book Rating : 01X/5 ( reviews)

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Book Synopsis Lot-Sizing and Scheduling for Flexible Flow Lines by : Daniel Quadt

Download or read book Lot-Sizing and Scheduling for Flexible Flow Lines written by Daniel Quadt. This book was released on 2012-09-14. Available in PDF, EPUB and Kindle. Book excerpt: The book considers the lot-sizing and scheduling problem for flexible flow line production facilities. Flexible flow lines are flow lines with parallel machines on some or all production stages. They can be found in a vast number of industries. A three-phased solution approach is presented that solves the integrated lot-sizing and scheduling problem in a hierarchical manner. The approach is able to handle several important features relevant in industrial practice, such as back-orders and setup carry-over. The developed solution procedures solve practically sized problems in a relatively short amount of time. One of the procedures is based on a novel mixed integer programming (MIP) model, which employs integer variables instead of binary variables. This makes it possible to find (near-)optimal solutions using standard algorithms such as CPLEX. Another procedure uses two nested Genetic Algorithms. An application of the framework in the semiconductor industry is given.

Solving the Discrete Lotsizing and Scheduling Problem with Sequence Dependent Set-up Costs and Set-up Times Using the Travelling Salesman Problem with Time Windows

1996 Economic lot size
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Release : 1996
Genre : Economic lot size
Kind : eBook
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Book Synopsis Solving the Discrete Lotsizing and Scheduling Problem with Sequence Dependent Set-up Costs and Set-up Times Using the Travelling Salesman Problem with Time Windows by : Marc Salomon

Download or read book Solving the Discrete Lotsizing and Scheduling Problem with Sequence Dependent Set-up Costs and Set-up Times Using the Travelling Salesman Problem with Time Windows written by Marc Salomon. This book was released on 1996. Available in PDF, EPUB and Kindle. Book excerpt:

Production Planning and Scheduling for Lot Processing

2022-07-29 Mathematics
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Release : 2022-07-29
Genre : Mathematics
Kind : eBook
Book Rating : 034/5 ( reviews)

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Book Synopsis Production Planning and Scheduling for Lot Processing by : Larysa Burtseva

Download or read book Production Planning and Scheduling for Lot Processing written by Larysa Burtseva. This book was released on 2022-07-29. Available in PDF, EPUB and Kindle. Book excerpt: This book is dedicated to questions of production planning and scheduling activities both in general and in semiconductor manufacturing environments, which have the characteristics of high volume and high mixture. It explores topics such as shop models, work-in-process management, the treatment of setup times, basic techniques of lot batching and splitting, lot sizing and group technology approaches, as well as rescheduling questions. A number of directions for further research is suggested in the book, and a broad collection of references is provided.

Lotsizing and Scheduling for Production Planning

2012-12-06 Technology & Engineering
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Release : 2012-12-06
Genre : Technology & Engineering
Kind : eBook
Book Rating : 355/5 ( reviews)

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Book Synopsis Lotsizing and Scheduling for Production Planning by : Knut Haase

Download or read book Lotsizing and Scheduling for Production Planning written by Knut Haase. This book was released on 2012-12-06. Available in PDF, EPUB and Kindle. Book excerpt: Billions of dollars are tied up in the inventories of manufacturing companies which cause large (interest) costs. A small decrease of the inventory and/or production costs without reduction of the service level can increase the profit substantially. Especially in the case of scarce capacity, efficient production schedules are fundamental for short delivery time and on-time delivery which are important competitive priorities. To support decision makers by improving their manufacturing resource planning system with appropriate methods is one of the most of production planning. interesting challenges The following chapters contain new models and new solution strategies which may be helpful for decision makers and for further research in the areas of production planning and operations research. The main subject is on lotsizing and scheduling. The objectives and further characteristics of such problems can be inferred from practical need. Thus, before an outline is given, we consider the general objectives of lotsizing and scheduling and classify the most important characteristics of such problems in the following sections.

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