RESEARCH ON LBA-MNA BUCKLING ANALYSIS AND OPTIMIZATION OF WIND TURBINE TOWER

Bai Lu; Liu Yong; Yang Shuchao; Wang Xiaofang

doi:10.19912/j.0254-0096.tynxb.2023-1422

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (1) : 176-183. DOI: 10.19912/j.0254-0096.tynxb.2023-1422

RESEARCH ON LBA-MNA BUCKLING ANALYSIS AND OPTIMIZATION OF WIND TURBINE TOWER

Bai Lu^1,2, Liu Yong^1,2, Yang Shuchao^1,2, Wang Xiaofang^1,2

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Abstract

In order to solve the problem that engineering algorithm is relatively conservative in tower buckling calculation, taking a large wind turbine tower as the research object, linear elastic bifurcation analysis-materially nonlinear analysis （LBA-MNA） method was studied and used to calculate the buckling resistance of tower. The results indicate that LBA-MNA method can evaluate the buckling resistance of tower more accurately with larger buckling margin compared to engineering algorithm under the same conditions. A tower with no weight reduction space based on engineering algorithm was then optimized by modifying wall thickness with the goal of reducing weight by 2 to 14 tons. The results show that using LBA-MNA method for buckling calculation can reduce tower weight by 5.71%. It proves the feasibility of using LBA-MNA method in optimization of tower dominated by buckling.

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wind turbines / towers / buckling / LBA-MNA / optimization

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Bai Lu, Liu Yong, Yang Shuchao, Wang Xiaofang. RESEARCH ON LBA-MNA BUCKLING ANALYSIS AND OPTIMIZATION OF WIND TURBINE TOWER[J]. Acta Energiae Solaris Sinica. 2025, 46(1): 176-183 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1422

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