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复杂物体间的距离 被引量:8
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作者 王金敏 查建中 +2 位作者 王爱虎 董明 章节笑 《计算机辅助设计与图形学学报》 EI CSCD 北大核心 1997年第1期14-19,共6页
物体间距离的计算在布局问题、动态系统模拟、机器人路径规划及干涉检验等领域具有重要意义。本文提出了基于八叉树的计算方法、用以计算复杂物体间的分离、干涉及定向距离。该方法借助Minkowski差及树的遍历等手段。
关键词 距离 干涉距离 Minkowski差 八叉树 计策方法
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Geological adaptability matching design of disc cutter using multicriteria decision making approaches 被引量:9
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作者 XIA Yi-min LIN Lai-kuang +3 位作者 WU Dun JIA Lian-hui CHEN Zhuo BIAN Zhang-kuo 《Journal of Central South University》 SCIE EI CAS CSCD 2018年第4期843-854,共12页
Geological adaptability matching design of a disc cutter is the prerequisite of cutter head design for tunnel boring machines(TBMs)and plays an important role in improving the tunneling efficiency of TBMs.The main pur... Geological adaptability matching design of a disc cutter is the prerequisite of cutter head design for tunnel boring machines(TBMs)and plays an important role in improving the tunneling efficiency of TBMs.The main purpose of the cutter matching design is to evaluate the cutter performance and select the appropriate cutter size.In this paper,a novel evaluation method based on multicriteria decision making(MCDM)techniques was developed to help TBM designers in the process of determining the cutter size.The analytic hierarchy process(AHP)and matter element analysis were applied to obtaining the weights of the cutter evaluation criteria,and the fuzzy comprehensive evaluation and technique for order performance by similarity to ideal solution(TOPSIS)approaches were employed to determine the ranking of the cutters.A case application was offered to illustrate and validate the proposed method.The results of the project case demonstrate that this method is reasonable and feasible for disc cutter size selection in cutter head design. 展开更多
关键词 tunnel boring machine(TBM) disc cutter matching design evaluation method multicriteria decision making(MCDM)
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