In Process Inventory Control In A Multi Stage Manufacturing Process Subject To Large Fluctuations In Lost Production
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In Process Inventory Control In A Multi Stage Manufacturing Process Subject To Large Fluctuations In Lost Production
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Author : Thomas Quinn LeBrun
language : en
Publisher:
Release Date : 1959
In Process Inventory Control In A Multi Stage Manufacturing Process Subject To Large Fluctuations In Lost Production written by Thomas Quinn LeBrun and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1959 with categories.
Production And Inventory Control Of A Multi Item Multi Stage Manufacturing System
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Author : Syed Zia Abbas Rizvi
language : en
Publisher:
Release Date : 2009
Production And Inventory Control Of A Multi Item Multi Stage Manufacturing System written by Syed Zia Abbas Rizvi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.
The project work presented in this thesis has proposed solutions related to the control of production and work-in-process inventory in a multi-item multi-stage manufacturing system. A suitable base-stock inventory control policy is recommended to ensure that the desired service levels are maintained between production stages and for the final customers. Concept of coupling the production lines though coupling-stock under suitable assumptions is then introduced to reduce the stock levels at certain consecutive production stages. A framework for demand seasonality and characteristic analysis is also established to enable the inventory control policy to respond to seasonal variations. Monte Carlo simulation was performed on a model of chain of production stages controlled under base-stock policy for the verification of results and to study the effects of stock-outs on base-stock levels. The results of simulation study showed that overall system performance is satisfactory and desired service levels were achieved. Simulation work was also carried out to validate the line coupling concept and its performance under certain conditions. A novel Kanban based visual management system design, which is aligned with the requirements of inventory control policy, along with the material transfer batch sizes between production stages is proposed to facilitate the implementation of inventory control policy. Furthermore, capacitated shipment planning approach is proposed and implemented in form of a spreadsheet-based interface to aid planning personnel in shipment planning under the constraints provided by the inventory control policy.
Deterministic Demand Multiechelon Production And Inventory Control Models
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Author : Naronk Hompluem
language : en
Publisher:
Release Date : 1979
Deterministic Demand Multiechelon Production And Inventory Control Models written by Naronk Hompluem and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with categories.
Selection Of Inventory Control Points In Multi Stage Pull Production Systems
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Author : Shravan K. Krishnan
language : en
Publisher:
Release Date : 2007
Selection Of Inventory Control Points In Multi Stage Pull Production Systems written by Shravan K. Krishnan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.
We consider multistage, stochastic production systems using pull control for production authorization in discrete parts manufacturing. These systems have been widely implemented in recent years and constitute a significant aspect of lean manufacturing. Extensive research has appeared on the optimal sizing of buffer inventory levels in such systems. However the issue of control points, i.e. where in the multistage sequence to locate the output buffers, has not been addressed for pull systems. Allowable container/batch sizes, optimal inventory levels, and ability of systems to automatically adjust to stochastic demand depend on the location of these control points. We begin by examining a serial production system producing a single part type. Two models are examined in this regard. In the first, container size is independent of the control section, while in the second, container sizes are section dependent. Additionally, a nesting policy is introduced which introduces the additional constraint that the container size in a section is related to the container size in any other section by a power of two. Necessary and sufficient conditions are derived for ensuring that a single, end-of-line accumulation point is optimal. When this is not the case, an algorithm is provided to determine the optimal control points. Effects of factors such as value added structure, fixed location cost, setup and material handling cost, kanban collection time, and material transportation time on the control structure are investigated. Results are extended to determine the optimal container size when lead time at a stage is a concave function of container size. The study is then extended to a multi-product case. Queuing aspects are introduced to account for the interaction between the different part types. The queuing model used is a modification of the Decomposition/Recomposition model described in Shantikumar and Buzacott (1981). The models in the chapter do not assume a serial structure any longer. Additionally, general interarrival and service time distributions are considered. The effect of number of products, demand arrival distribution, value added structure, and number of stages on the control structure and system cost is investigated. Finally, a simulation model is developed in Chapter 5 to verify and validate the mathematical models described in Chapters 3 and 4.
Analyzing Tradeoffs Between Working Capital And Production Capacity For Multi Stage Manufacturing Processes
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Author : Karim Kamareddine
language : en
Publisher:
Release Date : 2016
Analyzing Tradeoffs Between Working Capital And Production Capacity For Multi Stage Manufacturing Processes written by Karim Kamareddine and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
Large pharmaceutical companies struggle to find innovative ways to reduce work-in-process inventory in their production facilities. In our research, we focus on the tradeoff between inventory and production capacity through investing in new facilities and equipment. This tradeoff will depend on the company's objectives and what it is willing to give up in return for reducing inventory. We found that increasing capacity to reduce work-in-process inventory by investing in new facilities is not always the most favorable approach in terms of net present value. However, for flexibility or lead-time improvements, it may make sense to proceed with the investment. We developed multiple scenarios considering the company's future plans to reduce inventory or grow. These scenarios provide insights into the factors that improve the attractiveness of the investments and those that do not. Our financial analysis along with the guidelines and procedures that we have developed help the sponsor company most effectively reach its goal to reduce its work in process inventory.
Multi Level Production Inventory Control Systems
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Author : Leroy B. Schwarz
language : en
Publisher: North Holland
Release Date : 1981
Multi Level Production Inventory Control Systems written by Leroy B. Schwarz and has been published by North Holland this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Business & Economics categories.
Production And Inventory Control
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Author : George W. Plossl
language : en
Publisher: Prentice Hall
Release Date : 1985
Production And Inventory Control written by George W. Plossl and has been published by Prentice Hall this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Business & Economics categories.
A classic, practical, integrated approach to production and inventory control.
Production Planning And Inventory Control
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Author : John F. Magee
language : en
Publisher:
Release Date : 1967
Production Planning And Inventory Control written by John F. Magee and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Inventory control categories.
Principles Of Inventory And Materials Management
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Author : Richard J. Tersine
language : en
Publisher: North-Holland
Release Date : 1982
Principles Of Inventory And Materials Management written by Richard J. Tersine and has been published by North-Holland this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Business & Economics categories.
This text/reference addresses the unprecedented changes occurring in manufacturing that are being brought about by quality management philosophy -- lower inventory, reduced lead-time, preventive maintenance, and increased emphasis on customer satisfaction. Combining theory and practice, it presents alternative systems (models) for managing materials (inventory) -- their use, transformation, distribution, and sale -- and their flow to, within, and from the organization. Covers forecasting and marketing analysis; independent demand systems (deterministic models/probabilistic models); discrete demand systems (deterministic models/materials requirements planning - MRP); inventory system changes and limitations; single order quantities; in-process inventory, just-in-time, and theory of constraints; distribution inventory systems; inventory valuation and measurement; simulation; and aggregate inventory control. Content progresses from simple systems to more complex models; numerous examples of solved problems and short case studies explore a variety of situations and organizational settings; and appendices provide additional extensions and supporting logic on particular topics. For practitioners and advanced students involved in operations, inventory control, production control, and physical supply in manufacturing.
Management Science
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Author :
language : en
Publisher:
Release Date : 1977
Management Science written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with Industrial management categories.
Includes special issues: The Professional series in the management sciences.