华北水利水电大学学报（自然科学版）2025，Vol.46Issue(4)：103-109,118,8.DOI:10.19760/j.ncwu.zk.2025062
被动磁流变阻尼器在实桥斜拉索减振中的应用研究
Application of Passive Magnetorheological Dampers in Vibration Control of Stay Cables in Actual Bridges
摘要
Abstract
[Objective]As the span of cable-stayed bridges increases,vibration control of stay cables has attracted significant public attention.Currently,passive damping solutions are commonly used,but they require optimized damper designs for dif-ferent cables and vibration modes,resulting in poor compatibility between vibration modes.[Methods]To address this is-sue,a passive magnetorheological(MR)damper-based vibration control strategy was proposed,which leveraged the adjust-ability of smart devices.By modifying the internal magnetic field of the damper,the same device could achieve optimized de-signs for multiple vibration control targets.[Results]Using a typical single-rod MR damper as an example,its internal struc-ture and working principles were elucidated.A physical model of the MR damper's control force was established based on par-allel-plate fluid theory,and a numerical model of a controlled stay cable coupled with the MR damper was developed.Unlike existing linear equivalent force models,this refined force-electricity model fully accounted for the nonlinear characteristics of the MR damper's control force.Numerical simulations identified the optimal operating currents for the first three vibration modes.[Conclusion]The results demonstrate the modal compatibility of the passive MR damping strategy in vibration con-trol.This research provides an advanced and effective method for flexible stay cable structures,offering both theoretical signif-icance and practical value.关键词
磁流变阻尼器/斜拉索/振动控制/阻尼比Key words
magnetorheological damper/stay cables/vibration control/damping ratio分类
交通工程引用本文复制引用
王明,王福良,赵睿,姚腾达,许艳伟,汪志昊,蔺伟楠..被动磁流变阻尼器在实桥斜拉索减振中的应用研究[J].华北水利水电大学学报（自然科学版）,2025,46(4):103-109,118,8.基金项目
国家自然科学基金项目(52378300,52408329) （52378300,52408329）
河南省高等学校重点科研项目(24B560012) （24B560012）
河南省重点研发与推广专项项目(242102320046). （242102320046）
