调谐液柱阻尼器-结构系统风致振动响应的CFD/CSD耦合分析方法

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Abstract In view of the challenges in establishing an accurate nonlinear theoretical analysis model for the Tuned Liquid Column Damper (TLCD), as well as the high cost and time-consuming of its mechanical performance testing, the Computational Fluid Dynamics (CFD) method is utilized to analyze the mechanical properties and dynamic characteristics of the TLCD system. Furtherly, a coupled analysis method based on Computational Fluid Dynamics/Computational Structural Dynamics (CFD/CSD) is proposed to analyze the wind-induced dynamic response of high-rise structures equipped with TLCD systems. Through conducting the mechanical performance and dynamic characteristic tests on a typical TLCD system under a specific bottom excitation, the wave height of free liquid surface and sloshing force are obtained, which verifies the accurate analysis capability of the CFD numerical method regarding the nonlinear characteristics of sloshing liquids within the TLCD water tank. Subsequently, the widely adopted 76-story benchmark model for vibration control study in wind engineering is selected, with the TLCD system installed at the top of the main structure. Utilizing the proposed CFD/CSD coupled analysis method, numerical simulations are carried out to assess the wind vibration control efficiency under the dynamic across wind loads corresponding to design wind speed with three different return periods (10, 50, and 100 years). The results of the coupled analysis show that the TLCD system could produce a certain control effect on the wind-induced acceleration, velocity, and displacement responses of the benchmark model, with a more pronounced control effect on the acceleration response than the displacement response. The presented method offers an effective reference for the wind vibration control analysis of high-rise buildings with complex TLCD systems.

Key words： TLCD high-rise structure wind vibration control CFD CFD/CSD coupled analysis method

Received: 26 July 2023 Published: 15 June 2024

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	Articles by authors
	HUANG Peng
	WU Jiurong
	FU Jiyang
	SUN Lianyang
	WANG Jialei

Cite this article:

HUANG Peng,WU Jiurong,FU Jiyang, et al. CFD/CSD coupled analysis method for wind-induced vibration responses of TLCD-structure system[J]. JOURNAL OF VIBRATION AND SHOCK, 2024, 43(11): 236-245.

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http://jvs.sjtu.edu.cn/EN/ OR http://jvs.sjtu.edu.cn/EN/Y2024/V43/I11/236

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