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首页> 外文期刊>Journal of Wind Engineering and Industrial Aerodynamics: The Journal of the International Association for Wind Engineering >Analytical and experimental investigations on performance of tuned liquid column dampers with various orifices to wind-excited structural vibration
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Analytical and experimental investigations on performance of tuned liquid column dampers with various orifices to wind-excited structural vibration

机译：具有不同孔口的调谐液柱阻尼器对风激结构振动的性能的分析和实验研究

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摘要

A detailed study on the dynamic characteristics of passive damping devices of TLCDs with different blocking ratios in orifices is analytically and experimentally conducted for investigation of the optimal control performance of the TLCDs for a wide range of wind loading. In the analytical phase of this study, the control performance is thoroughly investigated for a single degree-of-freedom primary structure equipped with a TLCD for varying intensities of wind loading and blocking ratios. It is verified that the passive-type TLCD with an optimally designed small blocking ratio still shows good performance for strong wind excitation. Next, a series of experiments are carried out to investigate the control performance of a prototype of the TLCD using harmonic and white noise wind excitation and blocking ratios in the orifice by use of a shake table. The damping ratio of the TLCD with various blocking ratios is predicted by the head loss coefficient obtained from the measured data and used for estimating the control efficiency. It is confirmed that the optimal control performance is maintained under conditions of strong wind excitation and an optimally designed small blocking ratio. (C) 2015 Elsevier Ltd. All rights reserved.
机译：通过分析和实验详细研究了在孔中具有不同阻塞比的TLCD被动阻尼装置的动态特性，以研究TLCD在大风量下的最佳控制性能。在本研究的分析阶段，对配备TLCD的单自由度一级结构的控制性能进行了彻底研究，以改变风荷载和阻塞比的强度。经验证，具有最佳设计的小阻塞率的无源型TLCD在强风激励下仍显示出良好的性能。接下来，进行了一系列实验，以通过使用振动台，利用孔口中的谐波和白噪声风激励和阻塞比来研究TLCD原型的控制性能。通过从测量数据获得的压头损失系数，可以预测具有各种阻塞率的TLCD的阻尼率，并将其用于估算控制效率。可以确定的是，在强风激励和优化设计的小阻塞比的条件下，可以保持最佳控制性能。 （C）2015 Elsevier Ltd.保留所有权利。

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