中南大学学报（自然科学版）2013，Vol.44Issue(6)：2549-2553,5.
参数激励作用下水下悬浮隧道锚索的稳定性研究
Stability of submerged floating tunnel tether subjected to parametric excitation
摘要
Abstract
To study the vibration stability of submerged floating tunnel tether subjected to parametric excitation,the parametric vibration equation of tether was set up.The equation was simplified by Galerkin method.The vibration stability of tether was judged by Lyapunov exponent method.Effects of excitation amplitude of tether end,frequency and damping ratio on vibration stability of tether were also analyzed.The results show that unstable region expands gradually as the excitation amplitude of tether end increases; when excitation frequency of tether end is twice as that of tether,the tether is easy to be unstable; the tether tends to be stable as the damping ratio of tether increases.关键词
悬浮隧道/锚索/参数激励/稳定性Key words
submerged floating tunnel/ tether/ parametric excitation/ stability分类
交通工程引用本文复制引用
苏志彬,孙胜男..参数激励作用下水下悬浮隧道锚索的稳定性研究[J].中南大学学报（自然科学版）,2013,44(6):2549-2553,5.基金项目
国家自然科学基金资助项目(51108224) （51108224）
山东省优秀中青年科学家科研奖励基金资助项目(BS2010HZ005) （BS2010HZ005）
