• CN:11-2187/TH
  • ISSN:0577-6686

›› 1993, Vol. 29 ›› Issue (4): 1-9.

• 论文 •    下一篇

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工业机器人沿轨迹考虑奇异的运动反解

施旗;张启先   

  1. 北京航空航天大学
  • 发布日期:1993-07-01

SOLUTION FOR INVERSE KINEMATICS ALONG A CARTESIAN PATH WITH SINGULARITY FOR INDUSTRIAL ROBOTS

Shi Qi;Zhang Qixian   

  1. Beijing University of Aeronautics and Astronautics
  • Published:1993-07-01

摘要: 基于简化雅可比矩阵表示的微小运动增量关系式给出了工业机器人沿轨迹运动反解的计算公式。由于只需求解一个3阶线性方程组,大大简化了计算。采用奇异值分解来求解方程,通过在微小运动允许范围内给出方程的齐次解和适当地改变手部运动,很好地解决了奇异时关节运动的求解问题。既消除了关节运动的突变,又在一定程度上控制了手部运动的偏离。最后对一个运动反解中无解析显式解的工业机器人给出了计算结果。

关键词: 机器人, 算法, 运动学

Abstract: Based on the differential relationships represented with simplified Jacobian matrices, the paper presents the solution for inverse kinematics along a Cartesian path of industrial robots. As only a 3×3 linear equations need be solved, the computation is greatly simplified. The singular value decomposition is used to solve the set of equations. By giving the homogeneous solution of the set of equations within the limits of differential motion and changing the hand motion appropriately, the joint motion at singularity is better determined. Both the sudden change of joint motion is eliminated and the deviation of the hand motion is under control to a large extend. At the end of the paper, the computational results for inverse kinematics of a industrial robot without explicit solution are given.

Key words: Kinematics, Robot, Solution