• CN:11-2187/TH
  • ISSN:0577-6686

›› 2002, Vol. 38 ›› Issue (7): 111-115.

• 论文 • 上一篇    下一篇

冗余度机器人多关节故障的运动学容错性及其优化

李健;李剑锋;武桢;张启先   

  1. 北京航空航天大学机器人研究所
  • 发布日期:2002-07-15

FAULT TOLERANCE OF REDUNDANT MANIPULATORS WHEN MULTI-JOINT FAILED AND ITS OPTIMIZATION

Li Jian; Li Jianfeng; Wu Zhen; Zhang Qixian   

  1. Beijing University of Aeronautics andAstronautics
  • Published:2002-07-15

摘要: 首先基于对冗余度机器人故障构形的操作灵巧性分析,推导出机器人各阶子构形可操作度之间的关系。其次,分析了多关节故障构形下的相对操作灵巧性,并进一步由子构形的可操作度及对应的相对可操作度出发,提出了适用于多关节故障的运动学容错性优化目标。这种算法具有计算量小、可在线实时运算并保证关节速度连续的特点,所提优化目标适用于一个或多个关节故障。算例显示了算法的有效性。

关键词: 多关节故障, 容错性指标, 容错优化算法, 冗余度机器人

Abstract: The relationship of manipulability between the redundant manipulator and its alt sub-manipulators is formulat-ed on the basis of dexterous analysis, The disctission about relative manipulability is follovved, Furthenuore, according to the manipulability of sub-manipiilntors and corresponding relft-tive sub-manipulators, a new optimizing object for kinematic fault tolerance is presented. The algorithm is charncterized by less computation, rent-time implementation and capability of keeping joint velocity continuity. The proposed object suits for one joint or multi-joint failurc. The validity of the proposed algorithm is demonstrated by (lie simulntion result.

Key words: Multi-joint failure Fault-tolerant eri teri? Fault-tolerant optimizing algorithm, Redundant manipulntors

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