考虑挡板间水动力相互作用影响的矩形TLD水箱阻尼比分析

钟文坤; 吴玖荣; 孙连杨

doi:10.21656/1000-0887.410154

考虑挡板间水动力相互作用影响的矩形TLD水箱阻尼比分析

doi: 10.21656/1000-0887.410154

广州大学广州大学淡江大学工程结构灾害与控制联合研究中心, 广州 510006

基金项目: 国家自然科学基金(51778161;51925802)

详细信息

作者简介:
钟文坤(1991—)，男，博士生(E-mail: 1111816009@gzhu.edu.cn);吴玖荣(1970—)，男，教授，博士生导师(通讯作者. E-mail: jrwuce@gzhu.edu.cn).

中图分类号: O352
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- 文章访问数: 850
- HTML全文浏览量: 105
- PDF下载量: 184
- 被引次数: 0
出版历程
- 收稿日期: 2020-05-27
- 修回日期: 2020-06-16
- 刊出日期: 2021-01-01

Damping Ratio Analysis of Rectangular TLD Tanks With Hydrodynamic Interaction Effects Between Baffles

Guangzhou UniversityTamkang University Joint Research Center for Engineering Structure Disaster Prevention and Control, Guangzhou University, Guangzhou 510006, P.R.China

Funds: The National Natural Science Foundation of China（51778161;51925802）

摘要

摘要: 利用能量耗散原理，推导了底部安装有多块垂直挡板和左右侧壁对称安装有多组水平挡板的矩形TLD水箱在正弦激励荷载下的线性阻尼比估算公式.通过引入速度势函数修正因子考虑了挡板间水动力相互作用的影响，对矩形水箱的阻尼比计算公式进行了修正.将考虑挡板间水动力相互作用影响与否得到的矩形水箱阻尼比计算结果与振动台试验结果进行了对比分析.研究结果表明，挡板间距较小时，挡板间的水动力相互作用对水箱的阻尼比影响较明显，不能忽视，而考虑此因素进行修正后得到的阻尼比与试验值较吻合，具有更高估算精度.
- 矩形TLD水箱 /
- 能量耗散原理 /
- 挡板 /
- 线性阻尼比 /
- 振动台试验 /
- 水动力相互作用影响
Abstract: The estimation formulas for linear damping ratios of rectangular TLD tanks equipped with bottom-mounted vertical baffles or symmetrically wall-mounted horizontal baffles were derived based on the energy dissipation principle under sinusoidal excitation. The formula for the damping ratio of the tank was revised through introduction of the velocity potential function correction factor to consider the hydrodynamic interaction effect between the baffles. Furthermore, several shaking table tests were conducted on a scaled-down rectangular TLD water tank to validate the proposed analytical model for damping ratio estimation. Comparisons between predicted and measured damping ratios show that, the hydrodynamic interaction effects between the baffles with small spacings could reduce the damping ratio of the rectangular water tank. The estimated damping ratio of the rectangular water tank has higher accuracy with the proposed method in view of hydrodynamic interaction effects between baffles.
- rectangular TLD tank /
- energy dissipation principle /
- baffle /
- linear damping ratio /
- shaking table test /
- hydrodynamic interaction effect

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参考文献(22)

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考虑挡板间水动力相互作用影响的矩形TLD水箱阻尼比分析

doi: 10.21656/1000-0887.410154

作者简介:
钟文坤(1991—)，男，博士生(E-mail: 1111816009@gzhu.edu.cn);吴玖荣(1970—)，男，教授，博士生导师(通讯作者. E-mail: jrwuce@gzhu.edu.cn).

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Damping Ratio Analysis of Rectangular TLD Tanks With Hydrodynamic Interaction Effects Between Baffles

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留言板

考虑挡板间水动力相互作用影响的矩形TLD水箱阻尼比分析

doi: 10.21656/1000-0887.410154

作者简介: 钟文坤(1991—)，男，博士生(E-mail: 1111816009@gzhu.edu.cn);吴玖荣(1970—)，男，教授，博士生导师(通讯作者. E-mail: jrwuce@gzhu.edu.cn).

计量

出版历程

Damping Ratio Analysis of Rectangular TLD Tanks With Hydrodynamic Interaction Effects Between Baffles

计量

出版历程

目录

作者简介:
钟文坤(1991—)，男，博士生(E-mail: 1111816009@gzhu.edu.cn);吴玖荣(1970—)，男，教授，博士生导师(通讯作者. E-mail: jrwuce@gzhu.edu.cn).