机电工程技术2025，Vol.54Issue(18)：19-23,46,6.DOI:10.3969/j.issn.1009-9492.2025.18.004
气动载荷作用下大型风力机叶片结构拓扑优化设计
Structural Topology Optimized Design of Large Wind Turbine Blade under Aerodynamic Load
摘要
Abstract
For the conceptual design problem of complex blade aerodynamic structure,a parametric finite element model of wind turbine blade is established using 3D blade integrated expressed functions.The blade section topology structure technology which can solve the whole hexahedral grid problem for the solid blade is presented.Considering that aerodynamic loads are applied to the blade surface,a procedure combining MATLAB and APDL languages is developed to load the pressure distribution into the blade finite element model based on the modified blade element momentum theory.The blade model which the objective function is minimum weight is optimized.Compared with the traditional blade structure,the location of main beams for the optimized blade is near to blade leading edge,which exhibits asymmetric property.Moreover,the trailing edge of the new blade had reinforced structure.The topology optimized blades are re-designed and re-modeled,and compared with the original blades for analysis.It is found that under aerodynamic load,compared with the original blade,the maximum stress of the topologically optimized blade is 34.72 MPa,with a decrease of 6.72%;the tip displacement is 2.485 m,with a reduction of approximately 5.04%.This indicates that the topology optimized blade structure strength and tip displacement is superior to the original blade.The novel topology structure of the blade has important guiding significance for the sizing optimization of wind turbine blades.关键词
风力机叶片/拓扑优化/网格技术/气动载荷/叶素动量理论Key words
wind turbine blade/topology optimization/grid technology/aerodynamic loads/blade element momentum theory分类
能源科技引用本文复制引用
罗松,汪泉..气动载荷作用下大型风力机叶片结构拓扑优化设计[J].机电工程技术,2025,54(18):19-23,46,6.基金项目
国家自然科学基金(51975190) （51975190）
