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An efficient model for the crosscut optimisation problem in a wood processing mill

机译:木材加工厂横切优化问题的有效模型

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We propose a dynamic programming model for the crosscut optimisation problem. This problem arises in the context of cutting lumber (rip-first) in order to obtain cubic blocks (cut-pieces) with required dimensions and surface characteristics. We propose a novel approach for matching the pattern "of defects on all four surfaces of an incoming strip of wood with the surface requirements of the cut-pieces as specified in a given cut-bill, and determine an effective cutting pattern for each incoming strip accordingly. Our proposed dynamic programming model results in fast execution times as shown by the results of a computational experiment. The model is deployed in a software package that has been implemented successfully in several major rough mills.
机译:我们针对横切面优化问题提出了动态规划模型。为了获得具有所需尺寸和表面特性的立方块(切块),在切割木材时(先切裂)会出现此问题。我们提出了一种新颖的方法,用于将传入的木材条带的所有四个表面上的缺陷图案与给定的切工单中指定的切割件的表面要求进行匹配,并确定每个传入的条带的有效切割图案我们所建议的动态编程模型可以缩短执行时间,如计算实验结果所示,该模型部署在软件包中,该软件包已在数家主要的粗轧机中成功实施。

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