中文摘要：

运用修正的叶素-动量理论和有限元方法,建立了一种全新的考虑气动弹性的风力机叶片性能分析方法.运用该方法,在多种风速工况下对某850 k W风力机叶片的性能进行了计算,结果表明：对于大功率风力机,在大风速大载荷工况下,气动弹性对风轮性能有明显的影响,使叶片偏离原设计值.该方法的运用对于叶片的气动设计、载荷计算和结构设计有实际指导意义.

英文摘要：

A novel approach,which utilizes a modified blade element-momentum theory and the finite element method,is presented to analyze the blade performance of wind turbine considering aeroelasticity. Then,the approach is used to analyze the performance of the blades of an 850 MW wind turbine at various wind speeds. The results show that aeroelasticity obviously influences the performance of large-size wind turbines at high wind speed and greatly reduces the accuracy of the original design. The presented approach is of guiding significance for the aerodynamic shape design,load calculation and structural design of blades.