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Nasiri, N., Sadjadian, H., Mohammad Shahri, A. (2012). Nonlinear Stabilizing Controller for a Special Class of Single Link Flexible Joint Robots. Journal of Computer & Robotics, 5(1), 37-42.
Neda Nasiri; Houman Sadjadian; Alireza Mohammad Shahri. "Nonlinear Stabilizing Controller for a Special Class of Single Link Flexible Joint Robots". Journal of Computer & Robotics, 5, 1, 2012, 37-42.
Nasiri, N., Sadjadian, H., Mohammad Shahri, A. (2012). 'Nonlinear Stabilizing Controller for a Special Class of Single Link Flexible Joint Robots', Journal of Computer & Robotics, 5(1), pp. 37-42.
Nasiri, N., Sadjadian, H., Mohammad Shahri, A. Nonlinear Stabilizing Controller for a Special Class of Single Link Flexible Joint Robots. Journal of Computer & Robotics, 2012; 5(1): 37-42.

Nonlinear Stabilizing Controller for a Special Class of Single Link Flexible Joint Robots

Article 6, Volume 5, Issue 1, Winter and Spring 2012, Page 37-42  XML PDF (238.37 K)
Authors
Neda Nasiri email 1; Houman Sadjadian2; Alireza Mohammad Shahri2
1Department of Electrical, Computer and Biomedical Engineering, Qazvin Branch, Islamic Azad University, Qazvin, Iran
2Department of Electrical Engineering, Iran University of Science and Technology, Tehran, Iran
Receive Date: 28 October 2011,  Revise Date: 06 November 2011,  Accept Date: 15 December 2011 
Abstract
Joint flexibility is a very important factor to consider in the controller design for robot manipulators if high performance is expected. Most of the research works on control of flexible-joint robots in literature have ignored the actuator dynamics to avoid complexity in controller design. The problem of designing nonlinear controller for a class of single-link flexible-joint robot manipulators whose model incorporates the effect of the electrical actuator is considered in this paper. The main control purpose followed in this research is stabilization of the system states and backstepping approach is employed to achieve this goal and find control law. The global asymptotic stabilization of the closed-loop system is achieved in the sense of Lyapunov. Finally, to demonstrate the efficiency of the designed controller in stabilization the system states, the simulation results for system dynamics and closed-loop system, are compared in different initial conditions without and in the presence of external disturbances.
Keywords
Nonlinear Controller; Flexible joint manipulator; Stabilization; Electrical actuator
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