• CN:11-2187/TH
  • ISSN:0577-6686

›› 2005, Vol. 41 ›› Issue (10): 71-74.

• 论文 • 上一篇    下一篇

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基于几何非线性方法的大行程柔性并联机器人位置解

孙立宁;董为;杜志江   

  1. 哈尔滨工业大学机器人研究所
  • 发布日期:2005-10-15

KINEMATICS ANALYSIS OF A PARALLEL MANIPULATOR WITH LONG TRAVEL RANGE FLEXURE HINGES BASED ON GEOMETRIC NONLINEAR METHOD

Sun Lining Dong Wei Du Zhijiang   

  1. Robotics Institute, Harbin Institute of Technology
  • Published:2005-10-15

摘要: 提出了一种厘米级行程、微米级精度的柔性6-PSS并联机器人,该机器人的被动关节采用了大行程柔性铰链。首先,提出了大行程柔性铰链的概念并建立了其刚度矩阵;通过组集支链刚度矩阵以及建立适当的协调方程,得到基于刚度矩阵的柔性并联结构的位置解模型;由于模型中几何非线性问题的存在,在求解位置反解时,采用了修改的拉格朗日列式法;最后,给出了基于增量法解答的位置解算例。

关键词: 大行程柔性铰链 6-PSS并联机器人 刚柔耦合 刚度矩阵 几何非线性

Abstract: A novel flexible parallel manipulator is presented. Typical feature of this design is the adoption of long travel range flexible hinges and the centimeter-scale movement of the system. The kinematics of this manipulator is analyzed via the stiffness model of the long travel range flexure hinge. A calculation example of kinematics model is presented based on the Updated Lagrange formulation. Furthermore, corresponding kinematics simulation is executed to validate the kinematics analysis above.

Key words: 6-PSS parallel manipulator, Geometric nonlinearity, Long travel range flexure hinges, Rigid-flexible coupling, Stiffness matrix

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