Cost optimization for the slitting of core laminations for power transformers

A. Gerstl and S.E. Karisch

Annals of Operations Research, 1997, vol. 69, issue 0, 157-169

Abstract: The successful realization of a project for slitting core laminations for power transformers under minimizing costs is presented. The production of the core of power transformers re-quires great amounts of grain oriented silicon steel (up to 200 tons for a single transformer). The shape of the cross section of the core is approximated to a circle by stacking sheets of different widths. To supply these sheets, coils of given lengths and widths are to be slit following a cutting plan that minimizes the costs. We describe an efficient solution method which is based on the solution of various knapsack problems. Copyright Kluwer Academic Publishers 1997

Keywords: Cutting stock problems; combinatorial optimization; knapsack problems; dynamic programming; heuristics (search for similar items in EconPapers)
Date: 1997
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DOI: 10.1023/A:1018924810605

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