摘要
柔性机械臂在运动过程中会产生如扭曲、弹性、剪切等形变,给柔性机械臂的分析和控制带来困难。为了满足柔性机械臂高性能的控制要求,提出将基于观测器的滑模控制方法用于柔性机械臂中,设计一个观测器观测柔性机械臂系统各个状态变量,并且采用滑模变结构设计控制器。仿真结果表明,基于观测器的柔性关节机械臂滑模控制方法能够很好地观测到系统各个状态变量,且状态估计误差趋近于零,满足柔性臂的快速跟踪性要求,具有很好的实践意义。
Flexible manipulator arm occurs twisted, elastic and shearing deformations in the process of movement, which brings difficulty to its analysis and control. In order to meet the requirements of high performance control of flexible arm, proposes the observer-based sliding mode control method for flexible manipulator, designs an observer to monitor the state variables of flexible manipulator arm system, and applies sliding mode variable structure to design the controller. The simulated result shows that the proposed method does well in observing the variables of the system and the state estima-tion error approaches to zero, which meets the fast tracking of flexible arm, and has good practical significance.
出处
《湖南工业大学学报》
2014年第1期62-66,共5页
Journal of Hunan University of Technology
关键词
柔性机械臂
滑模控制
状态观测器
flexible manipulator arm
sliding mode control
state observer
