Frequency domain analysis method of tuned liquid damper controlled multi-degree of freedoms system subject to earthquake excitation

Tang, Zhenyun; Dong, Yue; Liu, Hao; Li, Zhenbao

doi:10.1016/j.jobe.2021.103910

Cited by 8 publications

(2 citation statements)

References 29 publications

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“…To reduce the lags and errors in physical substructure loading, the full-state compensation via stimulation (FSCS) controller proposed by Tang 29 was added before the signal input to the shaking table system. As the report, 30 the FSCS controller is able to improve displacement tracking accuracy and achieves the acceleration tracking errors of less than 5% within 10 Hz. The functionality of the FSCS controller is illustrated in Figure 16.…”

Section: Testing Implementationmentioning

confidence: 74%

Implementation of real‐time hybrid simulation based on Python‐graphics processing unit computing

Dong,

Tang,

2023

Structural Design Tall Build

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SummaryReal‐time hybrid simulation is a testing method that combines physical experiments and numerical simulations, which can increase the dimensions of experimental specimens and reduce the error of scaling testing. Currently, the maximum degrees of freedom of numerical models are 7000 in real time. To improve the scale of numerical simulation in real time, a testing framework based on Python and graphics processing unit was proposed in this paper. The maximum degrees of freedom of the numerical model exceeded 24,000 with the testing framework. The testing capacity of real‐time hybrid simulation was significantly improved by the graphics processing unit calculations.

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Section: Testing Implementationmentioning

confidence: 74%

Implementation of real‐time hybrid simulation based on Python‐graphics processing unit computing

Dong,

Tang,

2023

Structural Design Tall Build

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“…In the multimode case for the same TLD mass ratio with upper limit of 1.5%, it reduced the structural acceleration but obtained similar results in displacement. 26 Sardar and Chakraborty, in their study on the control of wave vibrations on an offshore platform, found that the increase in the structure mass ratio increased the TLD control performance. 27 Pandit and Biswal observed that an increase in mass ratio from 1% to 2% increased the top floor displacement performance almost twofold in their analysis with the inclined tank damper using a TLD mass ratio limited to 2%.…”

mentioning

confidence: 99%

Mass ratio factor in control performance of optimum tuned liquid dampers

Ocak,

Bekdaş,

Nigdeli

2023

Structural Design Tall Build

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SummaryTuned liquid dampers provide structure control with the help of the liquid mass in tanks that are attached to the structure. The mass ratio affects the optimum tuned liquid damper (TLD) parameters. This study examines the effect of mass ratio on the control performance of TLD devices in providing seismic control of structures with different damping ratios. For this purpose, TLD devices with different mass ratios were placed on two different single‐story steel and reinforced concrete structure models, and their performance under earthquake excitation was investigated. TLD parameters for obtaining the optimum displacement level in the 0.5‐ and 1.0‐s structure natural period for both structure types were optimized with the Jaya algorithm (JA), which is a metaheuristic algorithm. By using the optimum TLD parameters, the structural displacement and total acceleration values were obtained by the critical earthquake analysis. When the results are examined, it is understood that TLD mass increase from a 20% mass ratio for both structure types and selected structure periods does not have a significant effect on TLD control performance.

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Stability and accuracy of central difference method for real-time dynamic substructure testing considering mass participation coefficient

Zheng,

Xu,

Yang

et al. 2024

Earthq. Eng. Eng. Vib.

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Frequency domain analysis method of tuned liquid damper controlled multi-degree of freedoms system subject to earthquake excitation

Cited by 8 publications

References 29 publications

Implementation of real‐time hybrid simulation based on Python‐graphics processing unit computing

Implementation of real‐time hybrid simulation based on Python‐graphics processing unit computing

Mass ratio factor in control performance of optimum tuned liquid dampers

Stability and accuracy of central difference method for real-time dynamic substructure testing considering mass participation coefficient

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