Abstract:Applying dynamic vibration absorbers is one of the widely-adopted strategies for wind-induced vibration control. By exploiting the Sherman-Morrison inversion, the explicit frequency response functions of a multi-degree-of-freedom structure controlled by novel inerter-based vibration absorbers (IVAs) were derived. The physical description of the modal interaction effects attributed to IVA installation was presented. Taking wind-resistance design of structures using Tuned Inerter Damper as an example, a semi-analytical numerical design strategy for the first-order mode control was proposed based on the fixed-point theory. Based on the real case of a high-rise building, the influences of modal interactions on parametric design and performance evaluation were quantified, and the superiority in parametric optimization of the proposed design strategy over that of the one without considering modal interactions was validated. The results demonstrate that better control performance can be achieved by well-designed IVAs having larger inertance and spanning more floors, but meanwhile, the modal interactions become more significant and need to be considered.
乔浩帅,黄鹏. 基于一阶模态控制的惯质吸振器抗风设计[J]. 振动与冲击, 2023, 42(15): 65-72.
QIAO Haoshuai, HUANG Peng. Wind resistant design of structure using IVAs based on first order modal control. JOURNAL OF VIBRATION AND SHOCK, 2023, 42(15): 65-72.
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