可再生能源2024，Vol.42Issue(5)：640-646,7.
叶片质量不平衡下风机基础的疲劳性能
The fatigue performance of wind turbine foundation with imbalance blade mass
摘要
Abstract
In order to explore the fatigue performance of the wind turbine foundation with embedded-ring when the blade mass is imbalanced,the additional load is derived by reconstructing the blade mass imbalance model of the wind turbine,a single-point simulation of the pulsating wind velocity spectrum is done based on the harmonic synthesis method theory to calculate the basic operating load such as the aerodynamic load of the wind turbine,the finite element model of the wind turbine blade-tower-foundation integration is established with the actual engineering as an example,and the structural self-resonance characteristics and the load response under the combined action of the basic operating load and the additional load are calculated.The results show that the deepening of the imbalanced quality of the wind turbine blades will lead to the intensification of the stress concentration phenomenon and the increase of the stress amplitude of the basic structure,which in turn will affect the fatigue performance and fatigue life of the structure.and the force characteristics of the concrete in the structure will be greatly affected,followed by the steel cage,and the foundation embedded-ring is the smallest.关键词
风机基础/叶片质量不平衡/有限元模拟/疲劳寿命Key words
foundation of wind turbine/mass imbalance of blade/finite element analysis/fatigue life分类
能源与动力引用本文复制引用
张惠平,刘哲锋,李鹏飞..叶片质量不平衡下风机基础的疲劳性能[J].可再生能源,2024,42(5):640-646,7.基金项目
长沙理工大学研究生科研创新项目(2019QJCZ06,CX2019SS09). （2019QJCZ06,CX2019SS09）
