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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 109
PROCEEDINGS OF THE FOURTH INTERNATIONAL CONFERENCE ON SOFT COMPUTING TECHNOLOGY IN CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING
Edited by: Y. Tsompanakis, J. Kruis and B.H.V. Topping
Paper 42

Semi-Active Control Algorithms for Magneto-Rheological Dampers

M.T. Braz-Cesar1, R. Rio2 and R.C. Barros3

1Polytechnic Institute of Bragança, Portugal
2University of Burgos, Spain
3Faculty of Engineering, University of Porto, Portugal

Full Bibliographic Reference for this paper
M.T. Braz-Cesar, R. Rio, R.C. Barros, "Semi-Active Control Algorithms for Magneto-Rheological Dampers", in Y. Tsompanakis, J. Kruis, B.H.V. Topping, (Editors), "Proceedings of the Fourth International Conference on Soft Computing Technology in Civil, Structural and Environmental Engineering", Civil-Comp Press, Stirlingshire, UK, Paper 42, 2015. doi:10.4203/ccp.109.42
Keywords: structural control, semi-active control, magneto-rheological damper.

Summary
Structural control includes a wide variety of control methodologies that have been developed over the years to deal with specific problems of civil engineering applications. In this regard, magneto-rheological (MR) dampers seems to be a promising technology to develop semi-active control systems for vibration control of building and bridge structures. Although the application of these devices in actual structures is still emerging, its efficiency to reduce high winds and seismic-induced vibrations has been validated through numerous numerical simulations, experimental tests either in reduced and full scale models and also some real applications. A major challenge of this type of control system is related to the choice of suitable control algorithms that allow the specific features of these controllable devices to be fully exploited. Thus, this paper provides an overview of the fundamental control algorithms usually involved in developing semi-active controllers with MR dampers for vibration suppression in civil engineering structures. The operating principle of each controller is briefly described specifying for each case the main requirements and also the fundamental control parameters that must be defined during the development of a semi-active control system with MR dampers.

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