不同深长比晃液阻尼器对柔性结构的地震响应控制研究

冯茹鸣; 曹琪翔; 郭子生; 邹鸿运; 张自立

doi:10.3724/j.gyjzG25092501

不同深长比晃液阻尼器对柔性结构的地震响应控制研究

doi: 10.3724/j.gyjzG25092501

1. 中广核新能源汕尾有限公司, 广东汕尾 516600;
2. 同济大学建筑工程系, 上海 200092;
3. 同济大学土木工程防灾减灾全国重点实验室, 上海 200092

基金项目:

国家自然科学基金面上项目（52478317）；上海市“科技创新行动计划”政府（机构）间合作项目（24160712200）；中央高校基本科研基金项目（22120250347）。

详细信息

作者简介:
冯茹鸣,高级工程师,主要从事漂浮式风电总体设计与海上安装工艺方向研究,fengruming@hhwlab.com。

通讯作者:
张自立,博士,教授,主要从事结构动力学研究,zili_zhang@tongji.edu.cn。

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出版历程
- 收稿日期: 2025-09-25
- 网络出版日期: 2026-11-06

Research on Seismic Response Control of Flexible Structures Using TLDs with Different Depth-Length Ratios

1. Shanwei Branch, CGN New Energy Co., Ltd., Shanwei 516600, China;
2. Department of Structural Engineering, Tongji University, Shanghai 200092, China;
3. State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China

摘要

摘要: 通过振动台试验和理论分析，探讨了晃液阻尼器（TLD）在不同液体深度下对柔性结构地震响应的减振性能。重点分析了质量比μ和深长比（h/L）对TLD减振效果的影响。研究结果表明：在本试验参数范围内，当深长比由0.05增大至0.20、质量比由2.72%同步增大至10.7%时，结构位移平均减振率约由48%提高至73%，加速度平均减振率约由31%提高至75%。由于深长比与质量比在试验设计中同步变化，上述结果反映的是二者共同变化对TLD减振性能的综合影响，尚不能独立评价二者各自的贡献。同时，采用TLD非线性降阶理论模型对不同深度TLD的模态阻尼参数进行理论分析，非线性降阶理论模型与试验结果的模拟结果吻合良好，验证了该理论模型在时域和频域的准确性。在此基础上，结合理论模型与试验结果而识别的液体晃荡1阶模态阻尼参数，随着液体深长比的增加而递减，揭示了不同水深下TLD的液体晃荡固有阻尼特性：浅水TLD的液体晃荡固有阻尼较大，而深水TLD的液体晃荡固有阻尼较小。
- 调谐液体阻尼器 /
- 振动台试验 /
- 深长比 /
- 非线性降阶理论模型 /
- 模态阻尼参数
Abstract: This study investigated the vibration reduction performance of a Tuned Liquid Damper （TLD） on the seismic response of flexible structures under different liquid depths through shake table tests and theoretical analysis．Particular attention was paid to analyzing the effects of the mass ratio μ and the depth-to-length ratio （h/L） on the vibration control performance of the TLD． The results indicate that， within the tested parameter range， as the depth-to-length ratio increased from 0.05 to 0.20 and the mass ratio simultaneously increased from 2.72% to 10.7%， the mean displacement reduction ratio increased from approximately 48% to 73%， while the mean acceleration reduction ratio increased from approximately 31% to 75%. Because these two parameters varied concurrently in the experimental design， the observed trend represents their combined influence on the vibration reduction performance of the TLD， and their individual contributions cannot be independently evaluated from the present test results．A nonlinear reduced-order theoretical model of the TLD was employed to analyze the modal damping parameters under different liquid depths．The simulations based on this model showed good agreement with the experimental results in both the time and frequency domains，confirming the model’s accuracy．Furthermore，the first-order sloshing modal damping parameters，identified by integrating the theoretical model and experimental data，decreased as the depth-to-length ratio increased．This trend revealed the inherent liquid sloshing damping characteristics of TLDs under varying water depths： shallow-water TLDs exhibited higher inherent sloshing damping，whereas deep-water TLDs exhibited lower inherent sloshing damping．
- Tuned Liquid Damper （TLD） /
- shake table test /
- depth-to-length ratio /
- nonlinear reduced-order theoretical model /
- modal damping parameter

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