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- Axsäter, Sven
(författare)
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Control theory concepts in production and inventory control
- 1985
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Ingår i: International Journal of Systems Science. - : Informa UK Limited. - 0020-7721 .- 1464-5319. ; 16:2, s. 161-169
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Tidskriftsartikel (refereegranskat)abstract
- The use of efficient production and inventory control systems is of great importance for industry. Therefore this area could be expected to provide many fruitful applications of control theory techniques. However, control theory has traditionally been aimed at applications in other fields, and results have only limited applicability in production and inventory control. This paper gives an overview of earlier research concerning control theory applications in production and inventory control. Areas given special emphasis are those in which control theory seems to have a stronger potential for practical application
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| 4. |
- Axsäter, Sven
(författare)
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Performance bounds for lot sizing heuristics
- 1985
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Ingår i: Management science. - : Institute for Operations Research and the Management Sciences (INFORMS). - 0025-1909 .- 1526-5501. ; 31:5, s. 634-640
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Tidskriftsartikel (refereegranskat)abstract
- This paper deals with the classical dynamic lot size problem without backlogging and capacity limitation. The author derives worst case performance bounds for a class of lot sizing heuristics. When the considered methods are applied a decision whether to have a set-up or not in a certain period is taken without regarding the future demands. It is shown that 2 is a lower bound for the worst case performance ratio for such heuristics. The results illustrate circumstances under which the approximate techniques fail
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- Axsäter, Sven, et al.
(författare)
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The impact of capacity investments on work-in-process and inventories
- 1985
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Ingår i: Engineering Costs and Production Economics. - 0167-188X .- 1878-4011. ; 9:1-3, s. 119-124
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Tidskriftsartikel (refereegranskat)abstract
- In order to obtain higher productivity, investments in the production system are needed. Such investments may lead to improvements of two kinds: (i) increased unit production rate and (ii) reduced set-up times. In this paper the impact of capacity investments on capital tied up in work-in-process and inventories is analyzed. Increased production capacity will usually mean that planning parameters, such as lot sizes, have to be changed. For example, if set-up times are reduced an optimal policy will use smaller order quantities. This will then indirectly lead to lower holding costs. The purpose of this study is to evaluate and compare such consequences.
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