摘要
以人行桥共振现象为依托,简要地分析阐述了人行桥减振的控制方法,即直接加黏滞阻尼器和丁MD减振控制系统,其中对丁MD减振控制系统的原理和技术做了详细分析,通过丁MD的工作原理可知,产品最终自振频率的准确性将决定其减振作用效果的大小。实际工程中,如果其振动频率与对应调节的结构振动频率相差较多,减振效果将大为缩减,甚至起到反作用。
Based on the pedestrian bridge resonance phe- nomenon, this paper briefly analyses abating the foot- bridge vibration control method, that of direct with vis- cous damper and TMD vibration control system. The TMD vibration control systems and the principle of the technique to do the detailed analysis through the working principle of TMD knowable, the final product self vibra- tion frequency accuracy will determine its damping effect size. In the actual project, if the vibration frequency and corresponding adjustment of structure vibration frequency is relatively small, the damping effect will be greatly re- duced, or even counterproductive.
关键词
人行桥
减振
阻尼器
footbridge
vibration damping
damper
