A SURVEY OF SEMI-ACTIVE CONTROL WITH MR DAMPERS

The present work describes part of the R&D on using a semi-active structural control technique in a civil engineering experimental model frame equipped with a MR damper, developed within COVICOCEPADproject approved in the framework of Eurocores program S3T. Some results are provided associated withthe calibration of a magneto-rheological (MR) damper at FEUP (Faculdade de Engenharia da Universidade do Porto) as well as on the experimental modal identification of the dynamic properties of asmall-scale metallic frame, with and without the inclusion of a specific MR device. Some numerical results of the controlled frame under simulated earthquakes are given, to be later compared with the experimental results of such frame installed in a Quanser shaking table

Keywords:

Response control , Clipped optimal control , MR dampers , Semi-active control