MODELLING AND NN CONTROL OF A TWO-LINK FLEXIBLE ROBOT MANIPULATOR

Authors

  • Mohammad Khairudin Jurusan Teknik Elektro, Universitas Negeri Yogyakarta

DOI:

https://doi.org/10.34151/technoscientia.v4i2.514

Keywords:

AMM, NN control, two-link flexible robot manipulator

Abstract

This paper presents investigations into the development of neural network (NN) control of a two-link flexible robot manipulator with load 0.5 kg. A dynamic model of the system is derived using a combined Euler-Lagrange and assumed mode methods (AMM). The controller reduces nonlinearities problem that can be efficiently solved using NN control. The system responses namely hub angular position and deflection responses and end-point acceleration at both links are obtained and analysed. The performances of the controllers are assessed in terms of the input tracking controller capability of the system. Moreover, the robustness of the NN control schemes is discussed. Finally, a comparative assessment of the control strategies is presented. The results show that NN controller performs give increasing profiles that compared with PID control.

References

Martins J. M., Mohamed Z., Tokhi M. O., Sa da Costa J. and Botto M. A. Approaches for dynamic modelling of flexible manipulator systems, IEE ProcControl Theory and Application, Vol. 150, 401-411. 2003.
Dogan, M., and Istefanopulos, Y. Optimal nonlinear controller design for flexible robot manipulators with adaptive internal model, IET Control Theory and Applications, 1, (3), pp. 770-778. 2007.
De Luca A. and Siciliano B. Closed-form dynamic model of planar multilink lightweight robots, IEEE Transactions on Systems, Man, and Cybernetics, Vol. 21, 826-839. 199).
M. Khairudin, Z. Mohamed, A.R. Husein, M.A. Ahmad. Dynamic Modelling and Characterization of A TwoLink Flexible Manipulator. Journal of Low Frequency Noise and Vibration Active Control. 2010; 29(3): 207-219.
Subudhi B. and Morris A. S. Dynamic modelling, simulation and control of a manipulator with flexible links and joints, Robotics and Autonomous System, Vol. 41, 257-270. 2002.
Shengping, L. Licheng, W. Zhen L. Impact dynamics and control of a flexible dual-arm space robot capturing an object. Journal Applied Mathematics and Computation 185. pp. 1149–1159. 2007.
Payo, I., Feliu, V., Cortazar, O.D. Force control of a very lightweight singlelink flexible arm based on coupling torque feedback, Mechatronics,10.(003). 2008.
Gurses, K., Buckham, B.J., Park, E.J. Vibration control of a single-link flexible manipulator using an array of fiber optic curvature sensors and PZT actuators, Mechatronics 19, 167–177. 2009.
Tian L., and Collins C.. A dynamic recurrent neural network based controller for a rigid-flexible manipulator system, Mechatronics, vol. 14, pp. 471-490. 2004.
Gutierrez, L. B. Lewis, F. L. and J. Andy Lowe. Implementation of a Neural Network Tracking Controller for a Single Flexible Link : Comparison with PD and PID Controllers. IEEE Transaction on industrial electronics. 45(2): 307-318.1998.
Tian. L. Collins, C. Adaptive Neuro Fuzzy Control of a Flexible Manipulator. Mechatronics. 15: 1305–1320. 2005.
Subudhi B., and Morris AS. Soft Computing Method Applied to Control of a Flexible Manipulator. Applied Soft Computing. 9: 149-158. 2009.

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Published

01-02-2012

How to Cite

Khairudin, M. (2012). MODELLING AND NN CONTROL OF A TWO-LINK FLEXIBLE ROBOT MANIPULATOR. JURNAL TEKNOLOGI TECHNOSCIENTIA, 4(2), 193–201. https://doi.org/10.34151/technoscientia.v4i2.514