Vol. 4, No. 3, 2009

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ISSN: 1559-3959
Performance and parametric study of active multiple tuned mass dampers for asymmetric structures under ground acceleration

Chunxiang Li, Jinhua Li, Zhiqiang Yu and Yan Qu

Vol. 4 (2009), No. 3, 571–588
Abstract

The application of active multiple tuned mass dampers (AMTMD) for suppressing translational and torsional responses is addressed for a simplified two-degree of freedom structure, able to represent the dynamic characteristics of general asymmetric structures subject to ground motions. By employing the developed optimum parameter and effectiveness criteria of the AMTMD, the influences of the normalized eccentricity ratio and the torsional-to-translational frequency ratio of asymmetric structures on the optimum parameters and effectiveness of the AMTMD are investigated in detail. For comparison purposes, the results of a single active tuned mass damper also are taken into consideration.

Keywords
vibration control, active multiple tuned mass dampers, asymmetric structures, ground acceleration, torsional-to-translational frequency ratio, normalized eccentricity ratio, damping, structural control
Milestones
Received: 19 November 2008
Revised: 12 January 2009
Accepted: 29 January 2009
Published: 8 June 2009
Authors
Chunxiang Li
Department of Civil Engineering
Shanghai University
149 Yanchang Road
Shanghai 200072
China
Jinhua Li
Department of Civil Engineering
Shanghai University
149 Yanchang Road
Shanghai 200072
China
Zhiqiang Yu
Department of Civil Engineering
Shanghai University
149 Yanchang Road
Shanghai 200072
China
Yan Qu
Department of Civil Engineering
Shanghai University
149 Yanchang Road
Shanghai 200072
China