基于剪切增稠液的耗能器设计与性能分析

THE DESIGN AND PERFORMANCE ANALYSIS OF ENERGY DISSIPATOR ON SHEAR-THICKENING FLUIDS

为增强非结构构件的抗振性能,文中基于约束阻尼形式以及新型阻尼材料STF,提出一种贴附式夹层耗能器。文中介绍耗能器的构造及工作原理并通过STF的增稠机理解释其减振耗能的可行性;其次通过数值模拟的方式研究耗能器中STF夹层厚度对其耗能性能的影响,得出在非结构构件的振动频率不同时,耗能器应选择适宜的夹层厚度,为非结构构件耗能减振提供了新思路。

To enhance the vibration damping performance of non-structural components,this paper proposes an at-tached interlayer energy dissipater based on the form of constrained damping and a new damping material called shear thickening fluid(STF).The structure and working principle of the dissipater is introduced,and the feasibility of its vibration damping and energy dissipation through the thickening mechanism of STF are elaborated.The influ-ence of the STF interlayer thickness in the energy dissipater on its energy dissipation capabilities are studied by nu-merical method.The results indicate that optimal interlayer thicknesses should be selected based on the vibration frequency of the non-structural components.The paper may provide a novel approach for the energy dissipation and vibration reduction of non-structural components.