Workspace Analysis and Trajectory Planning of Redundant Planar Parallel Robot
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摘要: 针对固高三自由度冗余并联平面机器人的结构特点,首先对其正向运动学特性进行了分析,然后对并联机器人的工作空间进行了确定。由于末端执行点位于工作空间不同区域时,反解表达式不同,所以对三自由度冗余并联平面机器人的逆向运动学的特性进行了分段考虑,并由此确定了关节的转角运动范围。随后,采用线性插值方法对关节空间轨迹规划进行了研究和仿真。实验结果证明了并联机器人工作空间和轨迹规划的正确性。Abstract: Focusing on the structural characteristics of a redundant parallel robot, we analyze its forward kinematics and then determine its workspace. Because of its execution points in different regions, its solutions for inverse kinematics are different. So we divide the solutions into two parts to obtain the execution points. Then we confirm the angular ranges of joints of the redundant parallel robot, plan its trajectory with the linear interpolation algorithm and simulate the trajectory. The simulation results prove the correctness of the workspace and trajectory of the redundant parallel robot.
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Key words:
- algorithms /
- computer simulation /
- degrees of freedom (mechanics) /
- forward kinematics
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[1] 刘欣,仇原鹰,陈光达,等.平面冗余与非冗余并联机器人工作空间图谱的比较研究[J].机械科学与技术学报,2007,26(5):650-654 Liu X, Qiu Y Y, Chen G D, et al. Comparative study of workspace spectrograms of planar redundant or nonredundant parallel manipulators[J]. Mechanical Science and Technology for Aerospace Engineering, 2007, 26(5): 650-654 (in Chinese) [2] 张立杰,刘颖,黄真.平面2 自由度驱动冗余并联机器人的性能分析[J].机械工程学报,2006,42(7):181-184 Zhang L J, Liu Y, Huang Z. Analysis of performances of planar 2-DOF parallel manipulator with actuation redundancy[J]. Chinese Journal of Mechanical Engineering, 2006,42(7):181-184 (in Chinese) [3] 魏巍,魏征.冗余机器人技术及其在焊接机器人领域的应用[J].新技术新产品,2013,(2):107-116 Wei W, Wei Z. Redundant robot technology and application in the field of welding robot[J]. New Technology Product, 2013,(2):107-116 (in Chinese) [4] 蔡自兴.机器人学[M].北京:清华大学出版社,2000 Cai Z X. Robotology [M]. Beijing:Tsinghua University Press, 2000 (in Chinese) [5] 熊有伦.机器人技术基础[M].武汉:华中科技大学出版社,2002 Xiong Y L. Fundamentals of robot techniques[M]. Wuhan: Huazhong University of Science and Technology Press, 2002 (in Chinese) [6] 王铁军,刘全凯,郝长中.六自由度并联机器人工作空间分析[J].沈阳工业学院学报,1999,18(3):21-24 Wang T J, Liu Q K, Hao C Z. Workspace analysis for a 6-DOFs parallel manipulator[J]. Journal of Shenyang Institute of Technology, 1999,18(3):21-24 (in Chinese) [7] 李万莉, 陈熙巍,茹兰.基于SimMechanics 的4自由度机器人的轨迹规划和仿真系统设计[J]. 中国机械工程学报,2008,6(2):144-148 Li W L, Chen X W, Ru L. Track planning and simulation system design for 4-DOF robots using SimMechanics[J]. Chinese Journal of Construction Machinery, 2008,6(2):144-148 (in Chinese)
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