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
  • [11] XIAO Xinbiao, SHEN Huoming, Vibration and the TMD control of bridges under moving loads [J], Journal of Vibration and Shock, 24, 2, pp. 58-61, (2005)
  • [12] WANG Hao, LIU Haihong, TAO Tianyou, Et al., Vibration control of long-span steel truss bridge subjected to train loadings using TMD [J], Journal of Vibration Engineering, 3, pp. 385-391, (2014)
  • [13] HU Ke, DING Yajie, WANG Zuocai, Et al., Distributed TMD based vehicle-bridge vibration and control of precast steel-concrete composite beam bridge [J], Journal of Hefei University of Technology ( Natural Science), 43, 3, pp. 382-388, (2020)
  • [14] XIANG Yiqiang, CHAO Chunfeng, Vortex-induced dynamic response for combined action of tube and cable of submerged floating tunnel, Journal of Zhejiang University (Engineering Science), 46, 3, (2012)
  • [15] XIANG Y Q, YANG Y., Spatial dynamic response of submerged floating tunnel under impact load, Marine Structures, 53, pp. 20-31, (2017)
  • [16] JIN C, CHUNG W C, KWON D S, Et al., Optimization of tuned mass damper for seismic control of submerged floating tunnel, Engineering Structures, 241, (2021)
  • [17] LI Yafeng, LI Shouying, CHEN Zhengqing, Optimization and performance evaluation of variant tuned mass damper inerter [J], Journal of Vibration Engineering, 33, 5, pp. 877-884, (2020)
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