U型流體式吸振器之頻率域反應特性研究

Study on Dynamic Responses of U-type Tuned Liquid Dampers in Frequency Domains

徐坤龍(K. L. Shyu) ； 郭信川(H. C. Kuo)

《中華民國振動與噪音工程學會論文集》 1997 (1997/05) Pp. 453-462

https://doi.org/10.30028/CSSVANNUAL.199705.0453

摘要

本文針對液體與空氣同時放於U型箱內之流體式吸振器，將其安裝於受簡諧外激振負荷之結構體，在頻率域下進行U型流體式吸振器對受微小外激振力的結構體之減振分析，以不同質量比（U型流體式吸振器內液體的質量／結構體質量）測試其對結構體之水平方向減振效果。最後，利用一U型TLD實驗模型量測於U型箱內水平部份的中間處裝置一有孔口之隔板情形的阻尼現象。

並列摘要

This report presents the results of study on the U-type tuned liquid damper (U-type TLD). In the U-type TLD, the air and liquid inside the U-type tank are used as the spring and mass of a dynamic damper of a structure, respectively.
Dynamic behaviors of the structure with/without U-type TLD subjected to a simple harmonic excitation are examined in frequency domain. Effect of mass ratio on vibration reduction is examined. The damping coefficient due to perforated baffles inside the middle of the horizontal part of the U-type tank is measured by using a U-type TLD experimental model.