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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