| 假肢膝关节四杆机构的优化与仿真 |
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| 引用本文： | 吴希瑶,翟少剑,郝倩.假肢膝关节四杆机构的优化与仿真[J].机械设计,2011(9). |
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| 作者姓名： | 吴希瑶 翟少剑 郝倩 |
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| 作者单位： | 北京工业大学机械工程与应用电子技术学院; |
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| 摘 要： | 从满足人体运动过程中假肢与人体的协调性出发,对假肢膝关节部位的构型进行选取,并对该机构进行了运动学分析;针对个人膝关节瞬心轨迹曲线,提出该机构尺寸参数的优化数学模型,对该机构的参数进行优化,使目标函数中机构瞬心坐标与人体膝关节瞬时转动中心理想值之差最小,即该机构的实际瞬心轨迹与理想的膝关节瞬心轨迹相接近,满足人体下假肢膝关节机构协调性的设计要求,通过Matlab优化工具箱进行优化计算并获得机构模型,又应用AD-AMS对机构模型进行运动学仿真,验证优化结果的可用性。
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| 关 键 词： | 膝关节 瞬心轨迹 优化 仿真 协调性 |
Analysis and simulation of prosthetic knee joint four bar mechanism |
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| WU Xi-yao,ZHAI Shao-jian,HAO qian.Analysis and simulation of prosthetic knee joint four bar mechanism[J].Journal of Machine Design,2011(9). |
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| Authors: | WU Xi-yao ZHAI Shao-jian HAO qian |
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| Affiliation: | WU Xi-yao,ZHAI Shao-jian,HAO qian(College of Mechanical Engineering and Applied Electronics Technology,Beijing University of Technology,Beijing 100124,China) |
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| Abstract: | In order to meet the coordination of prosthetic and human body in the process of human motion,the configuration of the prosthetic knee joint was selected,and kinematics analysis of the mechanism was carried out;based on personal instantaneous center trajectory curve of knee joint,the optimization mathematic model for size parameters of this mechanism was presented,the parameters were optimized,minimizing the difference between the instantaneous center coordinates in the objective function and ideal values o... |
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| Keywords: | knee joint instantaneous center path optimization simulation |
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