A Study on Wind Pressure Characteristics of a Large-Span Membrane Structure under the Fluctuating Wind in a Vertical Direction Based on a Large Eddy Simulation

Sun, Fenjin; Tang, Haoxuan; Lu, Mingjin; Chen, Lu

doi:10.1155/2022/8209487

Cited by 4 publications

(2 citation statements)

References 16 publications

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“…Kawulok et al [36] used RFEM software to numerically analyze the wind flow and simulated the wind tunnel in RWIND software. Sun et al [37] used the large eddy simulation method to explore the wind pressure characteristics of large-span roofs under vertical wind direction fluctuations. In addition, they also studied the effects of wind-induced vibration response and wind pressure distribution on saddle, wavy and continuous arched roofs.…”

Section: Introductionmentioning

confidence: 99%

Study on Wind-Induced Dynamic Response and Statistical Parameters of Skeleton Supported Saddle Membrane Structure in Arching and Vertical Direction

Chen,

Liu,

et al. 2024

Buildings

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Wind tunnel tests and numerical simulations are the mainstream methods to study the wind-induced vibration of structures. However, few articles use statistical parameters to point out the differences and errors of these two research methods in exploring the wind-induced response of membrane structures. The displacement vibration of a saddle membrane structure under the action of wind load is studied by wind tunnel tests and numerical simulation, and statistical parameters (mean, range, skewness, and kurtosis) are introduced to analyze and compare the displacement data. The most unfavorable wind direction angle is 0° (arching direction). The error between experiment and simulation is less than 10%. The probability density curve has a good coincidence degree. Both the test and simulation show a certain skewed distribution, indicating that the wind-induced vibration of the membrane does not obey the Gaussian distribution. The displacement response obtained by the test has good stability, while the simulated displacement response has strong discreteness. The difference between the two research methods is quantitatively given by introducing statistical parameters, which is helpful to improve the shortcomings of wind tunnel tests and numerical simulations.

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Section: Introductionmentioning

confidence: 99%

Study on Wind-Induced Dynamic Response and Statistical Parameters of Skeleton Supported Saddle Membrane Structure in Arching and Vertical Direction

Chen,

Liu,

et al. 2024

Buildings

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“…Wu et al [13] studied the aeroelastic instability characteristics and mechanism of two closed-type saddle shaped tensioned membrane structures by wind tunnel test, for most wind directions, several vibration modes are excited and the amplitude and damping ratio of the roof slowly increase with the oncoming flow velocity. Sun et al [14] investigated the effects of lateral pulsating winds at different wind speeds on the wind-induced vibration response and wind pressure distribution of different membrane structures.…”

Section: Introductionmentioning

confidence: 99%

Fluid Vibration Analysis of Large-Span Skeletal Membrane Structures under Pulsating Winds

Yang

Jia

2023

Advances in Civil Engineering

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To identify the location of the strongest vibration of skeletal membrane structures under pulsating wind and predict the response and damage of the structures. To guide engineering reinforcement, base on the platform of ANSYS Workbench as a platform, the complex skeleton membrane structure is first simplified using the modal fitting method, and the error of the 30th-order frequency of the membrane structure before and after the simplification is calculated to be less than 5% compared to the unsimplified model. Based on the simplified model, the unidirectional coupling and bidirectional coupling methods were compared using the surface averaging wind pressure distribution parameters of the membrane structure. The results show that the extreme value and extreme difference of the averaged wind pressure of the bidirectional coupling are larger than those of the unidirectional coupling under the same wind angle, which verifies the reliability of the vibration analysis of the large-span membrane structure under the bidirectional coupling. By analyzing the wind pressure coefficients at the key measure points, it can be seen that the structure is in unfavorable working condition at the wind angle of 0°–45°. Based on the bidirectional coupling method, the maximum displacement time variation curve, maximum acceleration time variation curve, and maximum equivalent force time variation curve for different wind direction angles are basically the same, and the membrane structure gradually equilibrates with time, and the maximum instantaneous displacement, maximum instantaneous acceleration, and maximum equivalent force all reach the maximum at wind direction angle 30° and the minimum at 90°.

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Wind-induced response of saddle membrane structure under typhoon wind field by weather research and forecasting model and computational fluid dynamics

Chen,

Liu,

Huang

et al. 2024

Thin-Walled Structures

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A Study on Wind Pressure Characteristics of a Large-Span Membrane Structure under the Fluctuating Wind in a Vertical Direction Based on a Large Eddy Simulation

Cited by 4 publications

References 16 publications

Study on Wind-Induced Dynamic Response and Statistical Parameters of Skeleton Supported Saddle Membrane Structure in Arching and Vertical Direction

Study on Wind-Induced Dynamic Response and Statistical Parameters of Skeleton Supported Saddle Membrane Structure in Arching and Vertical Direction

Fluid Vibration Analysis of Large-Span Skeletal Membrane Structures under Pulsating Winds

Wind-induced response of saddle membrane structure under typhoon wind field by weather research and forecasting model and computational fluid dynamics

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