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DIFFERENT TYPE CONTROLLERS DESIGN FOR STRUCTURES UNDER SEISMIC EXCITATION
Abstract
In this study, linear quadratic regulator (LQR) and fuzzy logic (FL) controller are designed for displacement control of elastic structure under seismic excitation. MATLABВ®/SIMULINK toolbox is used for the mathematical modelling of the system and controllers design. Controllers are applied to the structure, components of which are assumed that they have standard stiffness and damping coefficient, to suppress seismical vibration. A hydraulic actuator is used as the control device. Dynamic of the actuators to create the control force to be applied to the structure, involved in the equation of motion of the controlled structure.The equation of motion of the system obtained in state-space model in continuous time is converted to discrete time. The equation of motion of a real building model structure is solved and simulated by using the data of a known earthquake having occurred ago. Numerical simulations and vibration results of the LQR and FL controlled and uncontrolled structure are presented in the form of graphics.
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References12
Xu, Y. L., He, Q, Ko, J. M., "Dynamic response of damper-connected adjacent buildings under earthquake excitation", Engineering Structures, Sayi: 21, 1999, pp. 135-148.
Mahmoud, M. S., Zribi, M., Soh, Y. C, "Optimal control of seismically-excited building structures", Computers and Structures, Sayi: 74, 2000, pp. 521-533.
Yamada, K., Kobori, T., "Fundamental dynamics and control strategies for aseismic structural control", Int. J. Of Solids and Structures, Sayi: 38, 2001, pp. 6079-6121.
Yagiz, N., Guçlu, R, Yüksek, L, "Aktif kütle sönümleyicili çok serbestlik dereceli bir yapinin depreme karst LQR kontrolü", mühendis ve Makine, Sayi: 498, 2001, pp. 20-24.
Li, Q. S., Fang, J. Q., Jeary, A. P., Liu, D. K., "Decoupling control law for structural control implementation", Int J. Of Solids and Structures, Sayi: 38, 2001, pp. 6147-6162.
Meirovitch, L., Stemple, T. J., "A new approach to the modelling of distributed structures for control", Journal of The Franklin Institute, Sayi: 338, 2001, pp. 241-254.
Zhu, H., Wen, Y., Iemura, H., "A study on interaction control for seismic response of parallel structures", Computers and Structures, Sayi: 79, 2001, pp. 23 1-242.
Akhiev, S. S., Aldemir, U., Bakioghi, M., "Multipoint instantaneous optimal control of structures", Computers and Structures, Cilt:80, Sayi: 1 1, 2002, pp. 909-917.
Mei, G., Kareem, ?., and Kantor, J. C, "Model Predictive Control of structures under Earthquakes using Acceleration Feedback", J. Of Engineering Mechanics, 2002, pp. 574-585.
Güclü, R., "Fuzzy logic control of vibrations of analytical multi-degree-of-freedom structural system", Turkish J. Eng. Env. Sci. 27,157-167, Tübitak, 2003.
Karadag, R.,H., "Dynamic modelling and control of structures under seismic excitation", Selçuk University, Graduate School of Natural and Applied Sciences, Konya 2005.
Kalyoncu, M., Tinkir, M., "Fuzzy Logic Control of Structures Under Seismic Excitation", Intelligent Manufacturing Systems(Ims),SakaryaUnv., 2006.
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