Usage of 3D geometry descriptions and transformation techniques in log bucking and curve sawing

Mikael Rönnqvist, Christine Todoroki and Toby Allsopp

Annals of Operations Research, 2000, vol. 95, issue 1, 93-113

Abstract: Detailed three dimensional models are nowadays frequently used in cross-cutting (bucking) tree stems into logs and in breakdown processes of logs into boards and flitches. Such models require increasingly sophisticated optimization models to assist planners (or automated decision support systems) in decision making. In this paper we develop two techniques that are linked to each other. The first is concerned with establishing high quality analytic approximations of full trees that are needed in full stem bucking applications. One important aspect is that inaccuracies due to measurement error can be reduced. The second is a transformation technique that makes it possible to apply curve sawing on logs in a standard straight sawing system. Numerical results based on real data are presented that support the usefulness of the techniques. Copyright Kluwer Academic Publishers 2000

Date: 2000
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DOI: 10.1023/A:1018962410199

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