A study on the annular cylindrical tuned liquid damper for dynamic control of spar buoy based measurement system

IF 1.5 4区工程技术 Q3 ENGINEERING, MECHANICAL Journal of Mechanical Science and Technology Pub Date : 2024-09-03 DOI:10.1007/s12206-024-0808-3

Taehyeong Kim, Seongyong Kim, Kyungjun Song

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Abstract

This paper presents design method for a tuned liquid damper (TLD) to improve the stability of measurement system based on a spar buoy. Firstly, a TLD was designed utilizing the double-partition hull structure of spar buoy, and the theoretical natural sloshing frequency for this design was calculated. Next, an experimental study was conducted to verify the theoretical calculations. The experimental results showed that the natural sloshing frequency increased with the height of the fluid free-surface, and the values are in close agreement with the theoretical calculations. Finally, the TLD was installed to a free-drifting structure at sea, and the dynamic behavior reduction effect was experimentally verified. The results showed that the behavior of the structure is significantly reduced after the TLD is installed, especially for the behavior above 4 cm. The main contribution of this study is the integration of a TLD into the existing structure of the spar buoy, which enhances stability without compromising buoyancy. However, this approach is limited by the shape and volume constraints of the TLD, making it less effective across all wave-induced frequencies. Further research is required to extend its applicability to a broader range of maritime conditions.

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基于测量系统的环形圆柱调谐液体阻尼器动态控制研究

本文介绍了调谐液体阻尼器（TLD）的设计方法，以提高基于撑杆浮标的测量系统的稳定性。首先，利用撑杆浮标的双隔板船体结构设计了一种 TLD，并计算了该设计的理论自然荡振频率。接着，进行了实验研究以验证理论计算结果。实验结果表明，自然荡振频率随流体自由表面高度的增加而增加，其值与理论计算结果接近。最后，将 TLD 安装到海上自由漂移结构上，并通过实验验证了动态行为降低效果。结果表明，安装 TLD 后，结构的行为明显减弱，尤其是 4 厘米以上的行为。本研究的主要贡献在于将 TLD 集成到现有的 spar 浮标结构中，从而在不影响浮力的情况下增强了稳定性。不过，这种方法受到 TLD 的形状和体积限制，在所有波浪诱发频率下的效果都不理想。需要进一步研究，以将其适用性扩展到更广泛的海洋条件。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Mechanical Science and Technology 工程技术-工程：机械

CiteScore

2.90

自引率

6.20%

发文量

517

审稿时长

7.7 months

期刊介绍： The aim of the Journal of Mechanical Science and Technology is to provide an international forum for the publication and dissemination of original work that contributes to the understanding of the main and related disciplines of mechanical engineering, either empirical or theoretical. The Journal covers the whole spectrum of mechanical engineering, which includes, but is not limited to, Materials and Design Engineering, Production Engineering and Fusion Technology, Dynamics, Vibration and Control, Thermal Engineering and Fluids Engineering. Manuscripts may fall into several categories including full articles, solicited reviews or commentary, and unsolicited reviews or commentary related to the core of mechanical engineering.