TMD Vibration reduction analysis and optimal layout for submerged floating tunnel tube under moving load

被引：0
|
作者：
Yang Y. [1 ]
Jin L. [2 ]
Xiang Y. [2 ]
He Y. [1 ]
机构：
[1] College of Civil Engineering, Shaoxing University, Shaoxing
[2] College of Civil Engineering and Arehiteeture, Zhejiang University, Hangzhou
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2024年 / 43卷 / 01期
关键词：
dynamic response; moving load; submerged floating tunnel (SFT); tuned mass damper (TMD); vibration reduction;
D O I：
10.13465/j.cnki.jvs.2024.01.020
中图分类号：
学科分类号：
摘要：
Here, to reduce dynamic response of submerged floating tunnel (SFT) under moving load, TMD was taken as a vibration control measure and its vibration reduction effect was analyzed. A SFT tube was simplified as an elastic foundation beam, and a moving harmonic force was used to simulate vehicle load. Fluid additional inertia effect and damping effect in pipe vibration process were calculated using Morison equation. Vibration control equations of pipe-TMD system under moving load were derived and established. Newmark-β method was adopted to numerically solve the equations. The vibration reduction effect of TMD on SFT was analyzed based on the calculation results. Aiming at vibration characteristics of SFT, a distributed TMD layout was proposed and effects of moving load speed and TMD damping ratio were discussed. The results showed that TMD has a significant vibration reduction effect on SFT under moving harmonic load, the maximum displacement vibration reduction rate is over 50% ; due to tunnel pipe vibration contains multiple modes, the effective vibration reduction range of a single TMD is limited, using distributed TMD can obtain better overall vibration reduction effect under the condition of the total mass keeping unchanged; improving mass ratio of TMD and reducing moving load speed can be helpful to improve the vibration reduction effect of TMD; increasing TMD damping ratio can weaken the vibration reduction effect of TMD, and it should be determined by comprehensively considering vibration reduction effect and requirements of working space. © 2024 Zhendong yu Chongji/Journal of Vibration and Shock. All rights reserved.
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页码：165 / 171
页数：6
相关论文
共 17 条
  • [1] XIANG Yiqiang, XUE Jingping, Study on submerged floating tunnels in the world, Journal of China & Foreign Highway, 22, 6, pp. 49-52, (2002)
  • [2] DONG Mansheng, GE Fei, HUI Lei, Et al., Research progress in submerged floating tunnels, China Journal of Highway and Transport, 43, 6, pp. 18-23, (2007)
  • [3] TARIVERDILO S, MIRZAPOUR J, SHAHMARDANI M, Et al., Vibration of submerged floating tunnels due to moving loads, Applied Mathematical Modelling, 35, 11, pp. 5413-5425, (2011)
  • [4] DONG Mansheng, ZHANG Yuan, TANG Fei, Et al., Displacement response of submerged floating tunnel tube due to moving loads of constant intervals, Chinese Journal of Applied Mechanics, 33, 5, pp. 760-765, (2016)
  • [5] XIANG Yiqiang, LIN Heng, CHEN Zhengyang, Dynamic response analysis of a submerged floating tunnel subjected to moving load [J], Journal of Vibration and Shock, 37, 4, pp. 82-87, (2018)
  • [6] LIN H, XIANG Y Q, YANG Y, Et al., Dynamic response analysis for submerged floating tunnel due to fluid-vehicle-tunnel interaction, Ocean Engineering, 166, 15, pp. 290-301, (2018)
  • [7] JIN C, BAKTI F P, KIM M H., Time-domain coupled dynamic simulation for SFT-mooring-train interaction in waves and earthquakes [J], Marine Structures, 75, (2021)
  • [8] XIANG Y Q, LIN H, BAI B, Et al., Numerical simulation and experimental study of submerged floating tunnel subjected to moving vehicle load, Ocean Engineering, 235, (2021)
  • [9] SATO M, KANIE S, MIKAMI T., Mathematical analogy of a beam on elastic supports as a beam on elastic foundation [J], Applied Mathematical Modelling, 32, 5, pp. 688-69, (2008)
  • [10] LIN C C, WANG J F, CHEN B F., Train-induced vibration control of high-speed railway bridges equipped with multiple tuned mass dampers, Journal of Bridge Engineering, 4, 10, pp. 398-414, (2005)
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