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PPR型平面欠驱动机械臂的点位控制 被引量:3

Point-to-point control of a planar prismatic-prismatic-revolute(PPR) under-actuated manipulator
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摘要 研究了PPR型平面欠驱动机械臂(第1个关节和第2个关节是移动关节且是受控的,第3个关节为被动的转动关节)在水平面运动的点位控制问题.首先,通过输入和坐标变换方法,系统的动力学方程被变换成二阶链式形式.其次,提出用反步法推导出保证系统指数渐近稳定的控制器.仿真结果表明,机械臂能够稳定地从任意初始位置运动到任意给定的位置,从而证明了控制器设计的有效性. The point-to-point control problem of a planar PPR under-actuated manipulator is considered in this paper. The PPR under-actuated manipulator with the first and the second prismatic actuated joints and the third passive revolute joint can only move in the horizontal plane. Firstly, the motion equations are transformed into the second order chained form by using input and coordinate transformations method. Secondly, the paper proposed an exponential asymptotic stable controller for the system by integrator backstepping method. Simulation results indicate that the proposed controller can effectively stabilize the manipulator system from any initial position to any desired position.
出处 《控制理论与应用》 EI CAS CSCD 北大核心 2007年第3期435-439,共5页 Control Theory & Applications
基金 国家自然科学基金资助项目(50375007 50405002).
关键词 欠驱动 平面机械臂 反步法 点位控制 under-actuated planar manipulator backstepping point-to-point control
作者简介 刘盛平(1978-),男,博士研究生,目前研究方向为欠驱动机器人、柔性机器人动力学及控制等,E—mail:liushengping@asee.buaa.edu.cn 吴立成(1972-),男,助理研究员,目前研究方向为机器人学、智能控制等,E-mail:wulicheng@tsinghua.edu.cn 陆震(1942-),男,教授,博士生导师,目前研究方向为机器人学、智能控制等,E-mail:zhenluh@buaa.edu.cn.
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共引文献8

同被引文献51

  • 1高丙团,陈宏钧,张晓华.欠驱动机械系统的三类级联规范型[J].控制与决策,2006,21(6):685-688. 被引量:3
  • 2刘玲,王耀南,况菲,张辉.基于神经网络和遗传算法的移动机器人路径规划[J].计算机应用研究,2007,24(2):264-265. 被引量:23
  • 3何朕,王毅,周长浩,刘彦文.球-杆系统的非线性问题[J].自动化学报,2007,33(5):550-553. 被引量:12
  • 4何广平,陆震,谭晓兰.欠驱动机械臂的光滑时变指数稳定[J].航空学报,2007,28(3):751-756. 被引量:1
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