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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 106
PROCEEDINGS OF THE TWELFTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL STRUCTURES TECHNOLOGY
Edited by:
Paper 63

Performance and Robustness of Different Feedback Controls for SDOF Structures

S.M. Nigdeli

Department of Civil Engineering, Istanbul University, Avcilar, Turkey

Full Bibliographic Reference for this paper
S.M. Nigdeli, "Performance and Robustness of Different Feedback Controls for SDOF Structures", in , (Editors), "Proceedings of the Twelfth International Conference on Computational Structures Technology", Civil-Comp Press, Stirlingshire, UK, Paper 63, 2014. doi:10.4203/ccp.106.63
Keywords: active control, structural control, feedback control, proportional integral derivative controller, structures, earthquakes, numerical algorithms..

Summary
This paper investigates performance and robustness of displacement, velocity and acceleration feedback controls for single degree of freedom (SDOF) seismic structures. In the methodology, SDOF structures are actively controlled by using proportional integral derivative (PID) type controllers. The controller parameters of PID controller are tuned by using a numerical algorithm considering time delay and maximum control force limit. Also, the robustness of the controller parameters was checked upto plus or minus 30% change of the mass of the structure. According to the results, a stability problem is not seen for all feedback controls. The acceleration feedback preserves its performance with the minimum efficiency loss and minimum increase of maximum control force compared with the other feedback controls.

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