Elastic-plastic dynamic response analysis on the frame structure incorporated with MR dampers based on member system modeling

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Journal of Vibration and Shock ›› 2013, Vol. 32 ›› Issue (6) : 100-104.

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Elastic-plastic dynamic response analysis on the frame structure incorporated with MR dampers based on member system modeling

ZHANG Xiang-cheng1, XU Zhao-dong1, RAN Cheng-song2, ZHU Jun-tao1

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Abstract

Magneto-rheological damper (MRD) is an excellent semi-active control device. The location matrix of MRD in the frame structure incorporated with MRD is derived. Then the member model is selected as the mathematical model of the structure. An elastic-plastic dynamic response analysis program of the structure incorporated with MRD is programmed by using MATLAB, the displacement and acceleration responses of the structure with and without MRD, as well as the distribution of plastic hinges of the member, are calculated and compared. Comparison results show that the displacement and the acceleration responses of each floor of the structure with MRD are reduced significantly, in which the vibration mitigation effective in displacement is superior to that in acceleration. At the same time, the number of the plastic hinges also reduced.

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magneto-rheological damper / dynamic response / frame structure

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ZHANG Xiang-cheng;XU Zhao-dong;RAN Cheng-song;ZHU Jun-tao. Elastic-plastic dynamic response analysis on the frame structure incorporated with MR dampers based on member system modeling[J]. Journal of Vibration and Shock, 2013, 32(6): 100-104