Second order sliding mode control for the 4-DOF SCARA robot
Publish place: 27th Annual Conference of Mechanical Engineering
Publish Year: 1398
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ISME27_677
تاریخ نمایه سازی: 8 مرداد 1398
Abstract:
In this paper, the second-order sliding mode controller is designed to control the 4 degrees of freedom (DOF) SCARA robot. This robot has three revolute joints and one prismatic joint. This controller can track the path and perform the control goal in presence of the uncertainties and disturbance in the system. The purpose of robot control in this article is tracking the desired path by theend effector of the robot and consequently, it causes to the zero tracking error. For this purpose, the initial slip surface is first defined, and then by obtaining a secondary slip surface and a derivative of them, the control signal derivative is derived. By integrating it andapplying the controller to the dynamics of the system, the path tracking problem is taken. In addition, Lyapunov s theory is used to prove the overall stability of the system. Finally, numerical simulation is performed and the results show that the control goal hasbeen achieved.
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Authors
Habib Ahmadi
Assistant professor, Faculty of Mechanical and Mechatronics Engineering, Shahrood University of technology
Aisan Yahid
M.Sc. student, Faculty of Mechanical and Mechatronics Engineering, Shahrood University of technology