中国科技核心期刊

中文核心期刊

CSCD来源期刊

空间控制技术与应用 ›› 2015, Vol. 41 ›› Issue (5): 13-18.doi: 10.3969/j.issn.1674-1579.2015.05.003

• 学术研究 • 上一篇    下一篇

串并混联空间机械臂全自由度轨迹规划算法

  

  • 出版日期:2015-10-24 发布日期:2015-12-01

TrajectoryPlanning Algorithm for SeriesParallel Space Manipulator Based on the Full DOFs

  • Online:2015-10-24 Published:2015-12-01

摘要: 目前,国内外对串并混联空间机械臂的研究较少;而且大多在舍弃冗余自由度的情况下进行轨迹规划.针对7自由度串并混联空间机械臂,提出了一种基于解析解、并且充分放开全部7个自由度的机械臂轨迹规划算法.该规划算法既扩大了串并混联空间机械臂的规划可达空间,又保证了规划的实时性,同时还保留了结构承载能力强的优点,可以充分发挥其作为空间抓捕用臂的优势.通过仿真和地面空间操作抓捕试验,验证了算法的有效性.

关键词: 空间机器人, 空间操作, 轨迹规划, 串并混联, 冗余自由度

Abstract: There are few researches so far focusing on the seriesparallel manipulator for space manipulators, where also the trajectoryplanning algorithms are usually without resort to the redundant DOFs. This paper proposes a novel trajectoryplanning algorithm for a 7 DOFs seriesparallel space manipulator, which is based on the analytical solutions of the inverse kinematics, and makes use of all the 7 DOFs. The algorithm enlarges the reachable space of the manipulator, ensures realtime implementation of the planning, and also maintains the high load capacity due to the seriesparallel structure. These facilitate the seriesparallel space manipulator to capture the targets during the space operation. Through simulations and experiments for space operation on the ground, the efficiency of the algorithm is verified.

Key words: space Robot, space operation, trajectoryplanning, seriesparallel, redundant DOFs

中图分类号: 

  • TP241.3