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Comparison of Hybrid Control Schemes for Vibration Suppression of Flexible Robot Manipulator

Mohd Ashraf, Ahmad and Raja Mohd Taufika, Raja Ismail and Mohd Syakirin, Ramli and Ahmad Nor Kasruddin, Nasir (2009) Comparison of Hybrid Control Schemes for Vibration Suppression of Flexible Robot Manipulator. In: International Conference on Computer Modeling and Simulation, ICCMS 2009, 20-22 Feb. 2009 , Macau. pp. 356-360..


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This paper presents a comparative assessment of control schemes for vibration suppression and end-point trajectory tracking of a flexible robot manipulator. A constrained planar single-link flexible robot manipulator is considered and the dynamic model of the system is derived using the assumed mode method. To study the effectiveness of the controllers, initially a collocated PD controller is developed for control of rigid body motion. This is then extended to incorporate a non-collocated PID controller and a feedforward controller based on input shaping techniques for control of vibration (flexible motion) of the system. For input shaping controller, the positive input shapers with different derivatives are proposed and designed based on the properties of the system. Simulation results of the response of the manipulator with the controllers are presented in time and frequency domains. The performances of the control schemes are assessed in terms of level of vibration reduction, input tracking capability and speed of response. Finally, a comparative assessment of the control techniques is presented and discussed.

Item Type: Conference or Workshop Item (Speech)
Additional Information: Conference proceeding - ISBN; 978-076953562-3 DOI-10.1109/ICCMS.2009.81
Uncontrolled Keywords: Computer simulation; Controllers; Frequency response; Industrial robots; Modular robots; Polarization; Proportional control systems; Robot applications; Robotics; Spacecraft
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Faculty/Division: Faculty of Electrical & Electronic Engineering
Depositing User: Siti Aishah Ghani
Date Deposited: 25 Apr 2012 03:38
Last Modified: 06 Feb 2018 07:44
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