湖南大学学报（自然科学版）2026，Vol.53Issue(1)：42-52,11.DOI:10.16339/j.cnki.hdxbzkb.2026005
基于耗能增强型扭转电涡流阻尼器的相邻结构减震优化研究
Optimization of vibration reduction for adjacent structures based on energy-dissipation enhanced torsional eddy current dampers
摘要
Abstract
The rapid urbanization has led to a tightening of land resources,often resulting in structures with small spacing between adjacent buildings.Under dynamic loads such as earthquakes,this may cause excessive relative displacement between adjacent structures,potentially leading to collision-induced damage.This paper proposes an energy-dissipation enhanced torsional eddy current damper(EDE-TECD)for vibration reduction in adjacent structures.The basic structure and operational mechanism of the EDE-TECD are first explained.Based on a rack-and-pinion speed amplifying device,a damping coefficient estimation formula for the EDE-TECD is derived.A simplified motion equation for two adjacent structures with EDE-TECD applied is established,and using the optimization criterion of maximizing the minimum damping ratio between adjacent structures,a numerical search method is employed to obtain the optimal inertial mass ratio and damping ratio for the two-degree-of-freedom adjacent structure system with EDE-TECD.An analysis of the optimal inertial mass ratio is conducted,leading to a design process for the optimal parameters in the practical application of EDE-TECD.Additionally,the vibration reduction performance of adjacent structures with either EDE-TECD or linear viscous dampers is compared.Finally,the influence of structural stiffness degradation on the vibration reduction performance of EDE-TECD is studied.The results show that the optimal inertial mass ratio obtained through numerical search may be negative.Increasing inertial mass ratio does not always improve the damping ratio of the structure's lower modes.Under 10 sets of earthquake wave tests,the optimized EDE-TECD significantly reduces the relative displacement of adjacent structures under seismic action,with the peak vibration reduction rate averaging 64.79％,which is 8.42％higher than that of linear viscous dampers.And under the El Alamo earthquake wave,when the structure's stiffness is reduced by 10％to 40％,the maximum decrease in the peak damping rate of EDE-TECD is only 6.29％,and the structure can still maintain good damping performance.关键词
振动控制/相邻结构/电涡流阻尼器/参数优化/地震响应Key words
vibration control/adjacent structures/eddy current damper/parameter optimization/damping per-formance分类
建筑与水利引用本文复制引用
周俊,禹争华,陈政清,王文熙,韩成龙,黄豪,华旭刚..基于耗能增强型扭转电涡流阻尼器的相邻结构减震优化研究[J].湖南大学学报（自然科学版）,2026,53(1):42-52,11.基金项目
国家自然科学基金资助项目(52278304,52025082),National Natural Science Foundation of China(52278304,52025082) （52278304,52025082）
湖南省科技创新计划资助项目(2023RC3090),Hunan science and technology innovation plan(2023RC3090) （2023RC3090）
长沙市杰出创新青年培养计划资助项目(kq2209009),Changsha Outstanding Innovative Youth Training Program(kq2209009) （kq2209009）
湖南省交通科技项目(202119),Hunan Pro-vincial Transportation Science and Technology Project(202119) （202119）
