风力机翼型多学科优化设计方法研究

Multidisciplinary Design Optimization of the Wind Turbine Airfoils

提出了一种基于翼型集成理论的钝尾缘翼型集成表达方法。针对风力机中低厚度翼型的气动、结构及噪声等多学科设计要求,采用粒子群算法构建了翼型的优化设计模型。以翼型最强气动性能为目标,在满足几何约束、结构及噪声学学科性能要求下,设计出具有良好气动性能、结构特性、噪声特性、失速特性和粗糙度敏感性的新翼型CQU-B210。计算分析结果表明,CQU-B210的各项性能指标均比常用翼型DU-210型有较大提高。

In this paper,the functional integral theory of blunt trailing edge wind turbine airfoils is studied.Aiming at the problem of a well-designed airfoil need satisfying multidisciplinary design requirements such as aerodynamic,structural and noise,a optimization design model is developed based on PSO algorithm.The optimization goal is the best aerodynamic performance,while satisfying geometric constraint,structural and noise requirement,a new airfoil named CQU-B210 which has better aerodynamic performance,structural characteristics,noise performance,stall and roughness sensitivity characteristics is optimized,comparing with a wind turbine airfoil(DU-210),the analysis shows that the optimized airfoil has better performance on every aspects.