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介绍了在湖南洞庭湖大桥上应用磁流变阻尼器进行拉索减振的试验情况 ,得到了安装阻尼器前后拉索系统的动力特性。试验结果显示系统的模态阻尼比在安装磁流变阻尼器后有大幅增长 ,具有良好的减振效果。实测的加速度响应也证明了磁流变阻尼器是拉索减振的有效手段
This paper introduces the experiment of applying magnetorheological damper to cable vibration damping in the Dongting Lake Bridge in Hunan Province, and obtains the dynamic characteristics of the cable system before and after installing the damper. The experimental results show that the modal damping ratio of the system increases greatly after the installation of MR damper, and has a good damping effect. The measured acceleration response also proves that MR damper is an effective means of cable vibration reduction