000011190 001__ 11190
000011190 005__ 20141205155845.0
000011190 04107 $$aeng
000011190 046__ $$k2008-10-12
000011190 100__ $$aOcchiuzzi, Antonio
000011190 24500 $$aExperimental Verification of Semi-Active MagnetoRheological Dampers for Earthquake Structural Control

000011190 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011190 260__ $$b
000011190 506__ $$arestricted
000011190 520__ $$2eng$$aMagnetorheological (MR) dampers represent one of the most promising semi-active control devices for applications aiming at the seismic risk mitigation of new or existing civil structures. Two 30 kN MR dampers were experimentally tested subjecting them to assigned conventional displacement laws at their ends. The paper describes the main results of the above experimental activity and aims at improving the knowledge about mechanical and dynamical modeling of such devices. Three different phenomenological models are considered and compared one each other: a) an improved version of the Bingham model including the influence of the feeding current on the damping and friction force components; b) a widely adopted model, combination of viscous and elastic elements with an hysteretic part behaving as the Bouc-Wen law; c) a model superposing an hysteretic damper by a non linear viscous device. The simplicity of using each model, the influence of the involved parameters and the capability in fitting the experimental results are discussed herein.

000011190 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011190 653__ $$aEnergy dissipation, magnetorheological damper, smart materials

000011190 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011190 720__ $$aOcchiuzzi, Antonio$$iSpizzuoco, Mariacristina$$iCaterino, N.
000011190 8560_ $$ffischerc@itam.cas.cz
000011190 8564_ $$s292724$$uhttps://invenio.itam.cas.cz/record/11190/files/12-01-0157.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 12-01-0157.
000011190 962__ $$r9324
000011190 980__ $$aPAPER