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机构地区:[1]浙江大学,杭州310027
出 处:《中国机械工程》2006年第8期836-840,共5页China Mechanical Engineering
基 金:国家重点基础研究发展计划资助项目(2002CB312106);湖北省杰出人才基金资助项目(2002AC001);广东省自然科学基金资助项目(033323AF020501)
摘 要:针对虚拟人体模型在计算机辅助工作空间设计中存在的不足,从模型精度、控制算法等方面进行改进研究。为了更准确地反映人体运动特性,以解剖学知识为依据,给出了人体单轴、双轴、多轴关节及关节间的运动约束模型。人体模型在精度提高的同时也增加了其控制复杂度,为此,采用关节约束下的基于逆向运动学控制方法和基于运动捕获数据的姿势生成两种方法,来提高生成人体作业姿势的快速性及准确性。通过实验系统验证了虚拟人体模型的有效性。This paper proposed an anatomy--based parametric human model in which we tried to overcome some limitations of other models which had used in ergonomics workplace design. Firstly, we improved the algorithm of motion constraints for uniaxial, biaxial and polyaxlal joints which were capable of exhibiting tom plex behavior of the joints. Secondly, two alternative methods for real time motion control were discussed. One of them used motion capture data to establish human posture database according to the motion data matching algorithm, and in order to increase the ability of manipulation with the model, an improved inverse kinematics algorithm was discussed in which the joint motion constraints were fully considered. At last, the experimental results show validity of the methods above.
分 类 号:TP391.9[自动化与计算机技术—计算机应用技术]
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