市政技术2026，Vol.44Issue(9)：25-34,105,11.DOI:10.19922/j.1009-7767.2026.09.025
附加混合控制措施的平行双吊索系统多模态减振特性研究
Study on Multi-mode Vibration Damping Characteristics of Parallel Double Hanger Systems with Additional Hybrid Control Measures
摘要
Abstract
As the critical force-transferring components of suspension bridges,hangers feature a large slenderness ratio,low mass and low damping,making them susceptible to vibration under wind loads.To address the challenge of wind-induced vibration control for parallel double hangers,a hybrid control scheme consisting of viscoelastic spacers(VES)and tuned inerter dampers(TID)is proposed.A dimensionless dynamic model of the parallel double hanger-VES-TID hybrid control system is established.The state-space method is adopted to solve for complex eigenvalues and modal damping ratios,and the influences of the layout,stiffness and damping parameters of VES as well as TID parameters on the dynamic properties of the system are analyzed.The results demonstrate that VES stiff-ness governs the coupling degree of the two hangers and the pattern of modal splitting.Compared with conventional rigid spacers,VES can alter the frequency branch of anti-phase modes and enhance anti-phase modal damping.The incorporation of TID further increases the damping of dense higher-order anti-phase modes.Within the param-eter range adopted in this study,the improvement of in-phase modal damping effect is limited,as the control per-formance is constrained by the cable-end installation location and the small relative deformation between hangers under in-phase vibration.The findings can provide references for improving the damping performance of parallel double hanger systems and parameter design of hybrid vibration mitigation measures.关键词
平行双吊索/黏弹性分隔器(VES)/调谐惯容阻尼器(TID)/多模态控制Key words
parallel double hangers/viscoelastic spacer(VES)/tuned inerter damper(TID)/multi-mode control分类
交通工程引用本文复制引用
刘启轩,李振川,许杨铭,靳奕..附加混合控制措施的平行双吊索系统多模态减振特性研究[J].市政技术,2026,44(9):25-34,105,11.基金项目
北京市自然科学基金项目(8264045) （8264045）
