COMPARISON OF NEW AND OLD EUROPEAN SHELL STRULTURE SPECIFICATION FOR BUCKLING BEARING CAPACITY OF WIND TURBINE TOWER

Qiu Xu; Chen Junling; Feng Youquan; Lin Changfeng; Zhao Hao

doi:10.19912/j.0254-0096.tynxb.2024-1054

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (10) : 696-702. DOI: 10.19912/j.0254-0096.tynxb.2024-1054

COMPARISON OF NEW AND OLD EUROPEAN SHELL STRULTURE SPECIFICATION FOR BUCKLING BEARING CAPACITY OF WIND TURBINE TOWER

Qiu Xu^1,2, Chen Junling³, Feng Youquan⁴, Lin Changfeng³, Zhao Hao^1,2

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Abstract

To explore the reasons for frequent tower cylinder buckling phenomena in the wind power industry, this article takes the European EC3 shell structure code, which is the most commonly used calculation method for tower buckling, as the research object. It analyzes the similarities and differences between the new and old versions of this code in terms of their methodologies for calculating buckling capacity. A quantitative analysis is conducted on key parameters such as manufacturing quality and buckling reduction factors used in the calculation methods outlined in both codes. The study reveals significant differences in the formulas for calculating the meridional buckling capacity between the new and old EC3 Shell Structures Codes. Furthermore, it highlights that manufacturing quality has a substantial impact on the buckling capacity of wind turbine towers. Notably, when designing towers using the new version of the code, careful consideration should be given to the selection of manufacturing quality parameters to ensure accurate and reliable buckling capacity calculations.

Key words

wind turbine tower / Eurocode / shell structure / buckling bearing capacity / geometrical imperfection

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Qiu Xu, Chen Junling, Feng Youquan, Lin Changfeng, Zhao Hao. COMPARISON OF NEW AND OLD EUROPEAN SHELL STRULTURE SPECIFICATION FOR BUCKLING BEARING CAPACITY OF WIND TURBINE TOWER[J]. Acta Energiae Solaris Sinica. 2025, 46(10): 696-702 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1054

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