基于电磁调控阻尼器的拉索减振方法研究  

Research on Cable Vibration Reduction Method Based on Electromagnetic Control Damper

作　　者：梁栋 卢建峰 高启战 闫峰 闫武 LIANG Dong;LU Jianfeng;GAO Qizhan;YAN Feng;YAN Wu(School of Civil and Transportation,Hebei University of Technology,Tianjin,China,300401;China First Highway Group Co.Ltd.,Beijing,China,100024;Research Department,Xingtai University,Xingtai,China,054001)

机构地区：[1]河北工业大学土木与交通学院,天津300401 [2]中交一公局集团有限公司,北京100024 [3]邢台学院科研处,河北邢台054001

出　　处：《沈阳建筑大学学报（自然科学版）》2024年第4期617-626,共10页Journal of Shenyang Jianzhu University：Natural Science

基　　金：国家自然科学基金项目(51978236)。

摘　　要：目的提出拉索多阶耦合振动问题的解决方法,为解决该类工程问题提供参考。方法设计电磁调控阻尼器,并提出相应减振方法用于抑制拉索的多阶耦合振动;为验证该电磁调控阻尼器的广谱减振性能,针对模型索设计了包括单阶和耦合振动在内的多种试验,并将试验结果与传统黏滞阻尼器的试验结果进行对比。结果在单阶振动问题中,该电磁调控阻尼器能够实现在更宽频率范围内对拉索振动进行减振;在多阶耦合振动问题中,该电磁调控阻尼器能够实现对主振动模态的目标识别与控制。结论利用电磁调控装置驱动相应的阻尼元件介入振动系统,实现对拉索主振动模态的实时控制,是抑制拉索多阶耦合振动的有效途径。A solution to the multi-order coupled vibration problem of tension cables is proposed to provide a reference for solving this type of engineering problems.In this paper,an electromagnetically regulated damper is designed and a corresponding damping method is proposed for suppressing the multi-order coupled vibration of a tension cable.In order to verify the broad-spectrum damping performance of this electromagnetic modulating damper,various tests including single-order and coupled vibrations were designed for the model cable,and the test results were compared with those of the traditional viscous dampers.In single-order vibration problems,the electromagnetic modulation damper is able to realize the damping of cable vibration in a wider frequency range;in multi-order coupled vibration problems,the electromagnetic modulation damper is able to realize the target identification and control of the main vibration modes.The use of electromagnetic control devices to drive the corresponding damping elements to intervene in the vibration system,realizing the real-time control of the main vibration modes of the cable is an effective way to inhibit the multi-order coupled vibration of the cable.

关 键 词：广谱减振 主动控制 多阶耦合 电磁调控阻尼器 可变阻尼 

分 类 号：TU997[建筑科学—市政工程]