Tip Position Control of Flexible Robot Manipulators Using 2-DOF Controller with Sliding Mode

슬라이딩 모드를 가진 2-자유도 제어기를 이용한 유연한 로봇 조작기의 끝점 위치 제어

  • Published : 2000.06.01

Abstract

The position control accuracy of a robot arm is significantly deteriorated when a long arm robot is operated at a high speed. In this case, the robot arm must be modeled as a flexible structure, not a rigid one, and its control system should be designed with its elastic modes taken into account. In this paper, the tip position control scheme of a one-link flexible manipulator using 2-DOF controller with sliding mode is presented. The robot consists of a flexible arm manufactured with a thin aluminium plate, an AC servo motor with a harmonic drive for speed reduction, an optical encoder and a CCD camera as a vision sensor for on-line measuring the tip deflection of the flexible m. Simulation and experimental results of the flexible manipulator with a proposed controller are provided to show the effectiveness of the controller.

Keywords

References

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