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考虑余料价值的三阶段二维剪切下料算法

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余料再利用是企业降低成本、减少环境污染的一个重要途径.在二维剪切下料问题中考虑余料的二次利用价值,采用束搜索优化材料利用率高、加工复杂度低的三阶段同质排样方式.束搜索节点既考虑板材中排入的毛坯价值,又考虑余料的二次利用价值,较好地兼顾当前生产周期的下料成本和余料在未来周期中的可用性.演示了排样方式的优化排样过程,给出了考虑余料价值的排样方案与已有文献算法的对比,说明文中算法可有效节省板材成本、生成可用标准余料.
A Method for Three-Staged Two-Dimensional Guillotine Cutting with Usable Leftover
Reuse of leftovers is an important way for enterprises to reduce costs and environmental pollution. The paper solves the two-dimensional guillotine cutting stock problem considering the reuse value of the leftover. The beam search heuristic is used to generate three-staged homogenous cutting patterns of high material utilization and low processing complexity. The nodes consider both the value of included items and the reusability of the leftover. It makes a good balance between the low material costs of the current production cycle and the reusability of leftovers for future. The optimization process is demonstrated, and the computational results compared with literature. It shows that the algorithm can effectively save plate and generate standard leftovers.

three-stagedbeam searchleftoverguillotine cutting

陈秋莲、宋仁坤、崔耀东

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广西大学计算机与电子信息学院,广西南宁 530004

三阶段 束搜索 余料 剪切下料

国家自然科学基金国家自然科学基金

6136302671371058

2017

图学学报
中国图学学会

图学学报

CSTPCDCSCD北大核心
影响因子:0.73
ISSN:2095-302X
年,卷(期):2017.38(1)
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