Semiactive Fluid Dampers for Seismic Protection of Structures
N. Makris and P. J. Antsaklis
Proceedings of 4th IEEE Mediterranean Symposium on Control and Automation, pp. 788-793, Chania, Crete, Greece, June 10-14, 1996.
Abstract -- In this paper the advantages of semiactive dampers for vibration control are discusses and it is shown that they can be a practical solution to the problem of protecting structures from earthquakes. In aprticular, there is a class of ground motions that induces large rapid displacements containing long periods which can devastate flexible structures. Herein, it is shown that the ability of controllable-fluid dampers to develop a controllable friction force and a plastic-type energy dissipation can be a practical solution to this problem. A dase study is presented to demonstrate the need and potential of controllable-fluid dampers in seismic protectionapplications. Some control strategies are discussed.
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