A study on production lot-sizing in MRP system. 1st report. Single-item, uncapacitated lot-sizing.
نویسندگان
چکیده
منابع مشابه
Competitive Uncapacitated Lot- Sizing Game
A game merging the lot-sizing problem with a Cournot competition model is for the first time theoretically studied. Each player is a producer with her own production facility, modeled as an uncapacitated lot-sizing problem (i.e., production incurs set-up and variable costs and inventories are allowed). A Cournot competition is played in each time period (market) with each player deciding the qu...
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We consider an extension of the dynamic uncapacitated lot-sizing problem to account for co-production, where multiple products are produced simultaneously in a single production run. We formulate the problem as a mixed-integer linear programming problem. We then show that a variant of the well-known zero-inventory property holds for this problem, and use this property to extend a dynamic progra...
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In the paper methods are developed to analyze a production process for professional equipment with advanced electronic and mechanical features. The starting point of the analysis is to find ways for production control and production organization which maintain and even strenghten the advantages of the MRP-system. but also mend the disadvantages to a large extent. The main advantages which could...
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One aspect that has mostly been overlooked in traditional economic lot-sizing is the implication of decisions on manual tasks and workload. Although lot-sizing decisions can have a significant impact on required manual material handling and on human performance, works that consider ergonomic aspects in lot-sizing are rare. This paper presents a model that integrates ergonomic aspect in terms of...
متن کاملSingle item lot-sizing with non-decreasing capacities
We consider the single item lot-sizing problem with capacities that are non-decreasing over time. When the cost function is i) non-speculative or Wagner-Whitin (for instance, constant unit production costs and non-negative unit holding costs), and ii) the production set-up costs are non-increasing over time, it is known that the minimum cost lotsizing problem is polynomially solvable using dyna...
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ژورنال
عنوان ژورنال: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C
سال: 1987
ISSN: 0387-5024,1884-8354
DOI: 10.1299/kikaic.53.2692