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Issues Of Hierarchical Planning In Multistage Production System

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Issues Of Hierarchical Planning In Multistage Production System

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Author : Dan Candea
language : en
Publisher:
Release Date : 1977

Issues Of Hierarchical Planning In Multistage Production System written by Dan Candea and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with categories.

Issues Of Hierarchical Planning In Multi Stage Production Systems

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Author : Dan Candea
language : en
Publisher:
Release Date : 1977

Issues Of Hierarchical Planning In Multi Stage Production Systems written by Dan Candea and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with Production planning categories.

The multi-stage production system is viewed as a production process in which component parts have to be obtained by manufacturing or by purchasing then assembled into subassemblies, assemblies, and finally into the finished good. At the aggregate level a new formulation for the aggregate planning model is given, in order to bring computational feasibility to situations in which older formulations went beyond the capabilities of current linear programming codes. The resulting aggregate model is a large scale system that lends itself to solution by column generation. A dynamic programming algorithm for the generation of columns is developed. Next, at the disaggregation level, the problem of computing optimal lot sizes in multi-stage systems is addressed and solved. Since exact solution procedures are found to be either very expensive or computationally infeasible, a heuristic approach is adopted and results are reported. For more complex situations, in which parts are common to several end products or where there is independent demand for parts, even the heuristics become infeasible; therefore it is suggested that myopic lot sizing policies be used.

Multi Stage Production Planning And Inventory Control

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Author : Sven Axsäter
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06

Multi Stage Production Planning And Inventory Control written by Sven Axsäter and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Business & Economics categories.

This paper treats a two-echelon inventory system. The higher echelon is a single location reffered to as the depot, which places orders for supply of a single com modity. The lower echelon consists of several points, called the retailers, which are supplied by shipments from the depot, and at which random demands for the item occur. Stocks are reviewed and decisions are made periodically. Orders and/or shipments may each require a fixed lead time before reaching their respective desti nations. Section II gives a short literature review of distribution research. Section III introduces the multi-echelon distribution system together with the underlying as sumptions and gives a description of how this problem can be viewed as a Markovian Decision Process. Section IV discusses the concept of cost modifications in a distribution context. Section V presents the test-examples together with their optimal solutions and also gives the characteristic properties of these optimal solutions. These properties then will be used in section VI to give adapted ver sions of various heuristics which were used in assembly experiments previously and which will be tested against the test-examples.

Hierarchical Production Planning For Multi Stage Assembly Systems

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Author : Javad Taheri
language : en
Publisher:
Release Date : 1983

Hierarchical Production Planning For Multi Stage Assembly Systems written by Javad Taheri and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with categories.

A Hierarchical Approach To Multi Stage Production Systems

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Author : Yoon C. Choy
language : en
Publisher:
Release Date : 1982

A Hierarchical Approach To Multi Stage Production Systems written by Yoon C. Choy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with categories.

Design And Analysis Of Lean Production Systems

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Author : Ronald G. Askin
language : en
Publisher: John Wiley & Sons
Release Date : 2007

Design And Analysis Of Lean Production Systems written by Ronald G. Askin and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.

Market_Desc: Management consultants and production control professionals in discrete parts manufacturing (both electronics and mechanical parts industries) Special Features: · Multi-level inventory material· Organized by topic and chronologically.· Covers supply chain integration issues within plant models About The Book: This book covers the design and improvement of single and multistage production systems. Following the standard production planning and scheduling decision hierarchy, it describes the inputs and outputs at each level of the decision hierarchy and one or more decision approaches. The assumptions leading to each approach are included along with the details of the model and the corresponding solution. Modern system concepts and the engineering methods for creating lean production systems are included.

Production Planning With Capacitated Resources And Congestion

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Author : Hubert Missbauer
language : en
Publisher: Springer Nature
Release Date : 2020-02-26

Production Planning With Capacitated Resources And Congestion written by Hubert Missbauer and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-02-26 with Business & Economics categories.

This book presents a comprehensive overview of recent developments in production planning. The monograph begins with an introductory chapter reviewing the need for these production planning models, that operate by determining time-phased releases of work into the facility or supply chain, relating these to the Manufacturing Planning and Control (MPC) and Advanced Planning and Scheduling (APS) frameworks, that form the basis of most academic research and industrial practice. The extensive body of work on Workload Control is also placed in this context, and proves the need for improved models with a discussion of the difficulties, these approaches encounter. The next two chapters present a detailed review of the state of the art in optimization models based on exogenous planned lead times, and examines the cases where these can take both integer and fractional values. The difficulties arising in estimating planned lead times are consistent with factory behavior which are highlighted, noting that many of these lead to non-convex optimization models. Attempts to address these difficulties by iterative multimodel approaches, that combine simulation and mathematical programming, are also discussed in detail. The next three chapters of the volume address the set of techniques developed using clearing functions, which represent the expected output of a resource in a planning period, as a function of the expected workload of the resource, during that period. The chapters on this subject propose a basic optimization model for multiple products, discuss the difficulties of this model and some possible solutions. It also reviews prior work, and discuss a number of alternative formulations of the clearing function concept with their respective advantages and disadvantages. Applications to lot sizing decisions and a number of other specific problems are also described. This volume concludes with an assessment of the state of the art described in the volume, and several directions for future work.