风电机组塔架LBA-MNA屈曲分析及优化研究  

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

作　　者：白璐 刘勇 杨淑超 汪小芳 Bai Lu;Liu Yong;Yang Shuchao;Wang Xiaofang(Windey Energy Technology Group Co.,Ltd.,Hangzhou 310012,China;Key Laboratory of Wind Power Technology of Zhejiang Province,Hangzhou 310012,China)

机构地区：[1]运达能源科技集团股份有限公司,杭州310012 [2]浙江省风力发电技术重点实验室,杭州310012

出　　处：《太阳能学报》2025年第1期176-183,共8页Acta Energiae Solaris Sinica

基　　金：浙江省“尖兵”“领雁”研发攻关计划项目(2023C01123)。

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。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.

关 键 词：风电机组 塔架 屈曲 LBA-MNA 优化 

分 类 号：TH114[机械工程—机械设计及理论]