斜拉索磁流变液阻尼器半主动振动控制系统的设计与应用

Design and application of MR fluid damper controlled stay-cable system

桥梁斜拉索是一种小阻尼、大柔度结构,在各种环境荷载作用下极易发生剧烈振动,因此迫切需要采取一定的措施来提高斜拉索的耐久性和安全性。本文针对山东滨州黄河公路大桥的减振需要,研究了基于磁流变液阻尼器的半主动振动控制系统的设计、材料与器件的性能实验以及现场振动控制实验。

Stay-cable is a flexible structure with very low internal damping, so it tends to violently vibrate under external load. It is urgent to adopt some methods to improve the durability and security of stay-cable. In this paper, design of semi active vibration control system based on MR fluid damper, performance experiments of MR fluid and MR fluid damper and practical vibration control experiments are researched for the stay-cable of Shandong Binzhou Yellow River Highway Bridge.