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Test and numerical simulation of a new type of hybrid control technique

Meng Qingli (孟庆利) , Zhang Minzheng (张敏政) and Cheng Dong (陈 栋)

Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China

Abstract: In this paper, a new hybrid control technique, based on a combination of base-isolation and semi-active variable stiffness/damping in a superstructure, is presented. To illustrate the efficiency of the proposed control system, model tests on a mini-electromagnetic shaking table and a numerical simulation were performed. The test and numerical calculation results indicate that this new hybrid control mode with additional damping and smaller additional stiffness can achieve a better control efficiency.

Keywords: base-isolation; semi-active variable stiffness/damping control; hybrid control; shaking table model test

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Copyright 2009 IEM. Journal of Earthquake Engineering and Engineering Vibration. All Rights Reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, scanning or otherwise, except as described below, without written permission from the Publisher. Copying of articles is not permitted except for personal and internal use, to the extent permitted by national copyright law, or under the terms of a license issued by the National Reproduction Rights Organization of China.