水下悬浮隧道张力腿的时滞减振控制研究

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振动与冲击 ›› 2021, Vol. 40 ›› Issue (15) : 48-53.

论文

水下悬浮隧道张力腿的时滞减振控制研究

童俊辉1，彭剑1,2，符翔1，孙洪鑫1,2

作者信息 +

Time-delay vibration reduction control of tension leg in submerged floating tunnel

TONG Junhui1, PENG Jian1,2, FU Xiang1, SUN Hongxin1,2

Author information +

文章历史 +

摘要

基于Euler-Bernoulli梁理论和时滞反馈控制策略，建立了参数激励作用下水下悬浮隧道张力腿的非线性振动控制方程，利用Galerkin法和线性稳定性分析，得到时滞作用下控制系统稳定性边界条件。通过数值计算分析了不同控制参数对振动响应的影响。结果表明，合理的时滞值和增益值，能大幅降低水下悬浮隧道张力腿的振动响应，提升结构稳定性。

Abstract

Based on Euler-Bernoulli beam theory and time-delay feedback control strategy, the wonlinear vibration control equation of a tension leg in submerged floating tunnel under parametric excitation was established. Using Galerkin method and linear stability analysis, stability boundary conditions of the control system under time-delay action were obtained. Effects of different control parameters on the tension leg’s vibration response were analyzed through numerical calculation. The results showed that the reasonable time-delay value and gain value can greatly reduce vibration responses of the tension leg in underwater suspension tunnel, and improve its structural stability.

导出引用

童俊辉，彭剑，符翔，孙洪鑫. 水下悬浮隧道张力腿的时滞减振控制研究[J]. 振动与冲击, 2021, 40(15): 48-53

TONG Junhui, PENG Jian， FU Xiang, SUN Hongxin. Time-delay vibration reduction control of tension leg in submerged floating tunnel[J]. Journal of Vibration and Shock, 2021, 40(15): 48-53

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