WIND TUNNEL TEST AND NUMERICAL SIMULATION STUDY OF WIND-INDUCED VIBRATION COEFFICIENTS FOR DOUBLE-LAYER FLEXIBLE PHOTOVOLTAIC BRACKET STRUCTURE

Fu Xing; Meng Xianyu; Li Jing; Zhai Jie; Cheng Chuanguo

doi:10.19912/j.0254-0096.tynxb.2024-1559

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (1) : 106-115. DOI: 10.19912/j.0254-0096.tynxb.2024-1559

WIND TUNNEL TEST AND NUMERICAL SIMULATION STUDY OF WIND-INDUCED VIBRATION COEFFICIENTS FOR DOUBLE-LAYER FLEXIBLE PHOTOVOLTAIC BRACKET STRUCTURE

Fu Xing¹, Meng Xianyu^1,2, Li Jing³, Zhai Jie³, Cheng Chuanguo³

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Abstract

This paper takes a practical double-layer flexible PV project as the engineering background, an in-depth investigation into its wind-induced vibration coefficients was conducted. First, an aeroelastic model was designed and manufactured, and dynamic characteristics were calibrated. Subsequently, wind tunnel tests were conducted to investigate the influence of different factors such as wind speed, wind direction and boundary conditions on the wind-induced vibration coefficients. Then, a finite element model of the double-layer flexible PV bracket structure was established. The reliability of the simulation model was verified using the wind tunnel test results, and the influence of key factors such as aerodynamic damping, ground roughness and cable force on the structural dynamic response and wind-induced vibration coefficients was explored. The results indicate that the aerodynamic damping of the structure cannot be ignored. The wind-induced vibration coefficients in the leeward direction are greater than those in the windward direction. The wind-induced vibration coefficients are negatively correlated with wind speed and cable force, and positively correlated with the ground roughness coefficient.

Key words

PV power generation / wind tunnels / simulation platform / aeroelasticity / wind-induced vibration coefficient / double-layer flexible photovoltaic bracket

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Fu Xing, Meng Xianyu, Li Jing, Zhai Jie, Cheng Chuanguo. WIND TUNNEL TEST AND NUMERICAL SIMULATION STUDY OF WIND-INDUCED VIBRATION COEFFICIENTS FOR DOUBLE-LAYER FLEXIBLE PHOTOVOLTAIC BRACKET STRUCTURE[J]. Acta Energiae Solaris Sinica. 2026, 47(1): 106-115 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1559

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