风电机组塔架LBA-MNA屈曲分析及优化研究

白璐; 刘勇; 杨淑超; 汪小芳

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

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太阳能学报 ›› 2025, Vol. 46 ›› Issue (1) : 176-183. DOI: 10.19912/j.0254-0096.tynxb.2023-1422

风电机组塔架LBA-MNA屈曲分析及优化研究

白璐^1,2, 刘勇^1,2, 杨淑超^1,2, 汪小芳^1,2

作者信息 +

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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文章历史 +

摘要

针对塔架屈曲计算中工程算法较为保守的问题,以某大型风电机组塔架为研究对象,使用线弹性屈曲分析-材料非线性分析方法（LBA-MNA）对该塔架的抗屈曲性能进行计算与研究。结果表明,LBA-MNA方法可更准确评估塔架抗屈曲能力,在相同条件下较工程算法所得屈曲裕度更大。对基于工程算法已无减重空间的塔架以质量减少2~14 t为目标通过调整壁厚进行优化,结果显示应用LBA-MNA方法计算屈曲塔架质量可减少5.71%。证明了LBA-MNA方法在以屈曲要素为主导的塔架优化问题中使用的可行性。

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.

导出引用

白璐, 刘勇, 杨淑超, 汪小芳. 风电机组塔架LBA-MNA屈曲分析及优化研究[J]. 太阳能学报. 2025, 46(1): 176-183 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1422

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

中图分类号： TH114

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