Experimental performance evaluation of an equipment isolation using MR dampers / Yu-Cheng Fan in Earthquake engineering structural dynamics, Vol. 38 N°3 (Mars 2009)  

Experimental performance evaluation of an equipment isolation using MR dampers [texte imprimé] / Yu-Cheng Fan, Auteur ; Chin-Hsiung Loh, Auteur ; Yang, Jann N., Auteur . - pp. 285-305.
Génie Civil
Langues : Anglais (eng)
in Earthquake engineering structural dynamics > Vol. 38 N°3 (Mars 2009) . - pp. 285-305

Mots-clés :	Decentralized control  Sliding mode Equipment isolation  MR-damper
Index. décimale :	624.1 Infrastructures.Ouvrages en terre. Fondations. Tunnels
Résumé :	Critical non-structural equipments, including life-saving equipment in hospitals, circuit breakers, computers, high technology instrumentations, etc., are vulnerable to strong earthquakes, and the failure of these equipments may result in a heavy economic loss. In this connection, innovative control systems and strategies are needed for their seismic protections. This paper presents the performance evaluation of passive and semi-active control in the equipment isolation system for earthquake protection. Through shaking table tests of a 3-story steel frame with equipment on the first floor, a magnetorheological (MR)-damper together with a sliding friction pendulum isolation system is placed between the equipment and floor to reduce the vibration of the equipment. Various control algorithms are used for this semi-active control studies, including the decentralized sliding mode control (DSMC) and LQR control. The passive-on and passive-off control of MR damper is used as a reference for the discussion on the control effectiveness.
ISSN :	0098-8847
En ligne :	http://www3.interscience.wiley.com/journal/121381101/abstract