Parameter identification of large-scale magnetorheological dampers in a benchmark building

Magnetorheological (MR) dampers are devices that can be used for vibration reduction in structures. However, to use these devices in an effective way, a precise modeling is required. 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. 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. Magnetorheological dampers are used in this numerical platform both as isolation bearings as well as semiactive control devices. Supported by CICYT (Spanish Ministry of Science and Innovation) through grant DPI2008-06463-C02-01. ∗Corresponding author Email addresses: [email protected] (Arash Bahar), [email protected] (Francesc Pozo), [email protected] (Leonardo Acho), [email protected] (José Rodellar), [email protected] (Alex Barbat) URL: http://www-ma3.upc.es/codalab (Francesc Pozo), http://www.cimne.upc.es (Alex Barbat) Preprint submitted to Elsevier July 30, 2009