Kinematics modeling of a 6-PSS parallel mechanism with wide-range flexure hinges

被引：0
|
作者：
杜志江 [1 ]
史若冲 [1 ]
董为 [1 ]
机构：
[1] State Key Laboratory of Robotics and System(Harb in Institute of Technology)
来源：
Journal of Central South University | 2012年 / 19卷 / 09期
基金：
国家高技术研究发展计划(863计划);
关键词：
flexible parallel manipulator; wide-range flexure hinge; kinematics model; neural network;
D O I：
暂无
中图分类号：
TH113.22 [];
学科分类号：
080203 ;
摘要：
A novel 6-PSS flexible parallel mechanism was presented,which employed wide-range flexure hinges as passive joints.The proposed mechanism features micron level positioning accuracy over cubic centimeter scale workspace.A three-layer back-propagation(BP) neural network was utilized to the kinematics analysis,in which learning samples containing 1 280 groups of data based on stiffness-matrix method were used to train the BP model.The kinematics performance was accurately calculated by using the constructed BP model with 19 hidden nodes.Compared with the stiffness model,the simulation and numerical results validate that BP model can achieve millisecond level computation time and micron level calculation accuracy.The concept and approach outlined can be extended to a variety of applications.
引用
收藏
页码：2482 / 2487
页数：6
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