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Keywords: magnetorheological dampers, parameter identification, Bouc-Wen model, shear type, black box, benchmark building.

Summary

Magnetorheological (MR) dampers are devices that can be used for vibration reduction in structures [1]. However, to use these devices in an effective way, a precise modeling is required [2]. In this sense, in this paper we consider a modified parameter identification method of large-scale magnetorheological dampers which are represented using the normalized Bouc-Wen model [3]. The main benefit of the proposed identification algorithm is the accuracy of the parameter estimation. The validation of the parameter identification method has been carried out using a black box model of an MR damper in a smart base-isolated benchmark building [4]. Magnetorheological dampers are used in this numerical platform both as isolation bearings as well as semiactive control devices.

References

1: A. Dominguez, R. Sedaghati, I. Stiharu, "Modeling and application of MR dampers in semi-adaptive structures", Computers & Structures, 86(3-5), 407-415, 2008. doi:10.1016/j.compstruc.2007.02.010
2: F. Pozo, L. Acho, A. Rodríiguez, G. Pujol, "Nonlinear modeling of hysteretic systems with double hysteretic loops using position and acceleration information", Nonlinear Dynamics. doi:10.1007/s11071-008-9414-7
3: Y.K. Wen, "Method for random vibration of hysteretic systems", Journal of Engineering Mechanics, 102(2), 249-263, 1976.
4: S. Narasimhan, S. Nagarajaiah, E.A. Johnson, H.P. Gavin, "Smart base-isolated benchmark building. Part I: Problem definition", Structural Control and Health Monitoring, 13(2-3), 573-588, 2006. doi:10.1002/stc.99

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 91 PROCEEDINGS OF THE TWELFTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING Edited by: B.H.V. Topping, L.F. Costa Neves and R.C. Barros Paper 159 Parameter Identification of Large-Scale Magnetorheological Dampers in a Benchmark Building A. Bahar¹, F. Pozo², L. Acho², J. Rodellar¹ and A. Barbat³ ¹CoDAlab, ETSECCPB, ²CoDAlab, EUETIB, ³CIMNE, ETSECCPB, Universitat Politècnica de Catalunya, Spain doi:10.4203/ccp.91.159 purchase the full-text of this paper Full Bibliographic Reference for this paper A. Bahar, F. Pozo, L. Acho, J. Rodellar, A. Barbat, "Parameter Identification of Large-Scale Magnetorheological Dampers in a Benchmark Building", in B.H.V. Topping, L.F. Costa Neves, R.C. Barros, (Editors), "Proceedings of the Twelfth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 159, 2009. doi:10.4203/ccp.91.159 Keywords: magnetorheological dampers, parameter identification, Bouc-Wen model, shear type, black box, benchmark building. Summary Magnetorheological (MR) dampers are devices that can be used for vibration reduction in structures [1]. However, to use these devices in an effective way, a precise modeling is required [2]. In this sense, in this paper we consider a modified parameter identification method of large-scale magnetorheological dampers which are represented using the normalized Bouc-Wen model [3]. The main benefit of the proposed identification algorithm is the accuracy of the parameter estimation. The validation of the parameter identification method has been carried out using a black box model of an MR damper in a smart base-isolated benchmark building [4]. Magnetorheological dampers are used in this numerical platform both as isolation bearings as well as semiactive control devices. References 1 A. Dominguez, R. Sedaghati, I. Stiharu, "Modeling and application of MR dampers in semi-adaptive structures", Computers & Structures, 86(3-5), 407-415, 2008. doi:10.1016/j.compstruc.2007.02.010 2 F. Pozo, L. Acho, A. Rodríiguez, G. Pujol, "Nonlinear modeling of hysteretic systems with double hysteretic loops using position and acceleration information", Nonlinear Dynamics. doi:10.1007/s11071-008-9414-7 3 Y.K. Wen, "Method for random vibration of hysteretic systems", Journal of Engineering Mechanics, 102(2), 249-263, 1976. 4 S. Narasimhan, S. Nagarajaiah, E.A. Johnson, H.P. Gavin, "Smart base-isolated benchmark building. Part I: Problem definition", Structural Control and Health Monitoring, 13(2-3), 573-588, 2006. doi:10.1002/stc.99 purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £140 +P&P)
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