研究生: |
Isro Hutama Isro - Hutama |
---|---|
論文名稱: |
Adaptive Sliding Mode Control of a 6-DOF Robot Manipulator with Uncertain Parameters Adaptive Sliding Mode Control of a 6-DOF Robot Manipulator with Uncertain Parameters |
指導教授: |
郭重顯
Chung-Hsien Kuo |
口試委員: |
羅仁權
Ren C. Luo 蘇順豐 Shun-Feng Su 林其禹 Chyi-Yeu Lin |
學位類別: |
碩士 Master |
系所名稱: |
電資學院 - 電機工程系 Department of Electrical Engineering |
論文出版年: | 2015 |
畢業學年度: | 103 |
語文別: | 英文 |
論文頁數: | 91 |
外文關鍵詞: | rigid link electrically driven robot manipulator |
相關次數: | 點閱:214 下載:4 |
分享至: |
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In this thesis, end-effector position and orientation tracking problem of a 6 degrees of freedom (DOF) rigid link electrically driven (RLED) revolute joint serial robot manipulator with uncertain parameters and external disturbances is addressed. The system uncertainties and the external disturbances are bounded but their upper limits are unknown. The input matrix, which is always invertible and not necessarily a diagonal matrix, is also assumed to be uncertain with a certain bound. An adaptive sliding mode control (ASMC) is designed to solve tracking problem under the presence of these uncertainties. Note that the designed control method is general, not specific for a 6-DOF RLED revolute joint serial robot manipulator, thus it can be applied to any RLED serial robot manipulators. No regression matrices are required and the uncertainty upper limits are not necessarily known. Furthermore, reducing controller computation time is possible by deliberately considering some parts of the system dynamics and the nth time-derivative reference signals of nth order system, in this case desired joint angular jerk signals, as unknown bounded uncertainties. Lyapunov stability criterion is applied to prove the convergence of the adaptive gain of ASMC, the reaching of the sliding surface, and stability of the system. Besides that, inverse kinematics of the 6-DOF revolute joint serial robot manipulator and trajectory planning of the end-effector between two points in operational space are also designed. The inverse kinematics is developed using geometrical approach, while a fifth order polynomial function is used for the motion law of the trajectory planning. The methods to convert the end-effector translational and rotational velocity, acceleration, and jerk from operational space to joint space are also explained. Finally, simulation results verify the performance of the inverse kinematics, the trajectory planning, and the ASMC.
Keywords: adaptive sliding mode control, inverse kinematics, rigid link electrically driven robot manipulator, trajectory planning
In this thesis, end-effector position and orientation tracking problem of a 6 degrees of freedom (DOF) rigid link electrically driven (RLED) revolute joint serial robot manipulator with uncertain parameters and external disturbances is addressed. The system uncertainties and the external disturbances are bounded but their upper limits are unknown. The input matrix, which is always invertible and not necessarily a diagonal matrix, is also assumed to be uncertain with a certain bound. An adaptive sliding mode control (ASMC) is designed to solve tracking problem under the presence of these uncertainties. Note that the designed control method is general, not specific for a 6-DOF RLED revolute joint serial robot manipulator, thus it can be applied to any RLED serial robot manipulators. No regression matrices are required and the uncertainty upper limits are not necessarily known. Furthermore, reducing controller computation time is possible by deliberately considering some parts of the system dynamics and the nth time-derivative reference signals of nth order system, in this case desired joint angular jerk signals, as unknown bounded uncertainties. Lyapunov stability criterion is applied to prove the convergence of the adaptive gain of ASMC, the reaching of the sliding surface, and stability of the system. Besides that, inverse kinematics of the 6-DOF revolute joint serial robot manipulator and trajectory planning of the end-effector between two points in operational space are also designed. The inverse kinematics is developed using geometrical approach, while a fifth order polynomial function is used for the motion law of the trajectory planning. The methods to convert the end-effector translational and rotational velocity, acceleration, and jerk from operational space to joint space are also explained. Finally, simulation results verify the performance of the inverse kinematics, the trajectory planning, and the ASMC.
Keywords: adaptive sliding mode control, inverse kinematics, rigid link electrically driven robot manipulator, trajectory planning
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