二维码(扫一下试试看!) | 基于神经动力学的冗余机械臂恒定转速比算法 | Constant Rotation Ratio of Redundant Robot Manipulators Based on Neural Dynamics | 投稿时间:2018-10-11 | DOI:10.15918/j.tbit1001-0645.2019.10.015 | 中文关键词:恒定转速比冗余机械臂运动规划神经动力学龙格-库塔法 | English Keywords:constant rotation ratio (CRR)redundant robot manipulatorsmotion planningneural dynamicsRunge-Kutta methods | 基金项目:中央高校基本科研专项资助项目(HEUCF180404) | | 摘要点击次数:803 | 全文下载次数:315 | 中文摘要: | 提出一种基于神经动力学的恒定转速比(CRR)算法,用于解决冗余机械臂运动规划末端精度问题.在运动规划中,通过神经动力学求解出雅可比矩阵伪逆,由4阶龙格-库塔法得出实时精准的关节角速度,从而获得各关节平均速度比,并将其比值关系带入CRR算法中求解出最优关节角度.与传统的加权伪逆运动规划不同,CRR算法是在关节角位置层面求解,这也正是提高冗余机械臂末端精度的关键环节.在文末,通过平面3自由度和平面6自由度冗余机械臂模型进行运动规划仿真,仿真结果验证了算法的有效性. | English Summary: | In this paper, a constant rotation ratio (CRR) algorithm based on neural dynamics was proposed to solve the trajectory accuracy of motion planning for redundant robot manipulators. In the motion planning, the pseudo-inverse of the Jacobian matrix was solved by the neural dynamics network solver. The real-time and accurate joint velocity was acquired by the fourth-order Runge-Kutta methods to solve the average velocity ratio of each joint, and to obtain the optimal joint angle for the CRR. Differing from the traditional motion planning by weighted pseudo-inverse solution, the CRR algorithm was designed to solve at the joint angle level, being the key approach to improve the trajectory accuracy of redundant robot manipulators. In addition, computer-simulation models with three-link and six-link planar robot manipulators were established. Simulation results show the validity of the CRR based on neural dynamics algorithm. | 查看全文查看/发表评论下载PDF阅读器 | |
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