中南大学学报（自然科学版）2011，Vol.42Issue(6)：1791-1796,6.
悬浮隧道锚索黏弹性阻尼器的最优阻尼系数
Optimal damping coefficient of visco-elastic damper for submerged floating tunnel tether
摘要
Abstract
Taking the system that consists of a tether and a visco-elastic damper as research object, the vibration equation of tether and visco-elastic damper was set up considering tether sag effect. By means of Galerkin method, the partial differential equation was transformed into a set of ordinary ones. The maximum damping ratios and corresponding optimal damper coefficients were obtained after complex eigenvalue analysis. The effects of tether inclination and sag on its maximum damping ratio were researched. The results show that the corresponding optimal damper coefficients are different when different modes reach the maximum damping ratios. The mode order increases, and the corresponding optimal damper coefficient decreases. The maximum damping ratio of first in-plane mode is smaller than those of others due to the existence of tether sag. Inclination and sag of tether merely affect the maximum damping ratio of first in-plane mode.关键词
悬浮隧道/锚索/黏弹性阻尼器/振动控制/垂度Key words
submerged floating tunnel/ tether/ visco-elastic damper/ vibration control/ sag分类
交通工程引用本文复制引用
孙胜男,陈健云,苏志彬..悬浮隧道锚索黏弹性阻尼器的最优阻尼系数[J].中南大学学报（自然科学版）,2011,42(6):1791-1796,6.基金项目
国家自然科学基金资助项目(50578032)；山东省优秀中青年科学家科研奖励基金资助项目(BS2010HZ005) （50578032）
