Realization of High Performance Tuned Liquid Damper based on Nonlinearity Control and Damping Control

基于非线性控制和阻尼控制的高性能调谐液体阻尼器的实现

基本信息

批准号：
07555077
负责人：
KANEKO Shigehiko
金额：
$ 7.23万
依托单位：
The University of Tokyo
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
1995
资助国家：
日本
起止时间：
1995 至 1997
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07555077/
关键词：
Damper Nonlinear Vibration Sloshing Nonlinear Wave Tuned Liquid Damper Vibration Suppression Vibration Control Device Damping

项目摘要

In this research project, to establish the method of calculation for predicting the performance of various types of Tuned Liquid Dampers (TLDs), the following studies with three types of TLDs were conducted.(1) Deep water type cylindrical damperBasic theory for describing the performance of this type of TLD is first derived and then the case with a single net inserted in the middle of the cylinder is investigated .Finally, the simulation code is developed based on the proposed theory which was verified by the experimental results. In the experiment, open area ratio of the inserted net, mass ratio between TLD and main structure, initial amplitude, liquid depth ratio were selected as design parameters.(2) Rectangular damperStarting from well established theory for rectangular TLD developed by authors, two cases such as the case with multiple nets inserted perpendicular to the bottom wall of a rectangular container and the case with two nets inserted perpendicular to each side wall of a rectangular container were investigated to achieve higher performance of rectangular TLDs. With these two cases, simulation code is developed based on the proposed analytical model, the results of which were compared with experimental results.(3) Variable damping TLDTo develop a variable damping TLD,basic studies were performed with a rectangular TLD with steady inlet and outlet flow. First, to investigate the resonant characteristics of sloshing in a rectangular container with steady inlet and outlet flow, shaking table tests were performed and corresponding nonlinear analysis based on perturbation method is conducted. Succedingly, the difference of the dissipation energy produced by TLDs with and without steady inlet and outlet flow were investigated which gives us the result that TLD with steady inlet and outlet flow yields wider resonant range.

在该研究项目中，为了建立计算方法，以预测各种类型的调谐液体阻尼器（TLD）的性能，进行了以下研究，进行了三种类型的TLD的研究。（1）首先得出了这种类型的TLD的深水圆柱形圆柱形的圆柱形障碍理论，以描述这种类型的TLD的表现，然后是对单个网络进行了插入的情况，即在中间插入cyertied cy.fin inseption。通过实验结果证实了这一点。 In the experiment, open area ratio of the inserted net, mass ratio between TLD and main structure, initial amplitude, liquid depth ratio were selected as design parameters.(2) Rectangular damperStarting from well established theory for rectangular TLD developed by authors, two cases such as the case with multiple nets inserted perpendicular to the bottom wall of a rectangular container and the case with two nets inserted perpendicular研究了矩形容器的每个侧壁，以实现矩形TLD的较高性能。在这两种情况下，基于提出的分析模型开发了仿真代码，其结果与实验结果进行了比较。（3）可变阻尼TLDTO开发可变阻尼TLD，基础研究是使用具有稳定入口和出口流量的矩形TLD进行的。首先，为了研究具有稳定入口和出口流的矩形容器中晃动的谐振特性，进行了摇台测试，并基于扰动方法进行了相应的非线性分析。成功地，研究了有或没有稳定入口和出口流的TLD产生的耗散能量的差异，这使我们的结果稳定入口和出口流量会产生更大的共振范围。