Semi-active magnetorheological (SA MR) dampers seem to represent the easiest way to materialize the concept of smart devices for semi-active structural control. SA MR dampers can be utilized as reactive force generators, when the control algorithms adopted to drive the devices are derived in the framework of the control theory, or as smart dampers, when the real-time change of their mechanical properties is aimed to provide, at any time, the optimal amount of damping in a structure. The 2 approaches have different requirements in modeling the SA MR devices. Based on an experimental campaign on 2 prototype devices manufactured in Europe, the present paper compares the effectiveness of numerical models presented in the literature and analyze the response time and the dissipative capabilities of such devices.

Understanding and modelling the physical behaviour of magnetorheological dampers for seismic structural control

CATERINO, Nicola;OCCHIUZZI, ANTONIO
2011

Abstract

Semi-active magnetorheological (SA MR) dampers seem to represent the easiest way to materialize the concept of smart devices for semi-active structural control. SA MR dampers can be utilized as reactive force generators, when the control algorithms adopted to drive the devices are derived in the framework of the control theory, or as smart dampers, when the real-time change of their mechanical properties is aimed to provide, at any time, the optimal amount of damping in a structure. The 2 approaches have different requirements in modeling the SA MR devices. Based on an experimental campaign on 2 prototype devices manufactured in Europe, the present paper compares the effectiveness of numerical models presented in the literature and analyze the response time and the dissipative capabilities of such devices.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11367/3411
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