基于有限差分法和有限元法的大型风电叶片刚度计算  

Stiffness Calculation of Large-Scale Wind Turbine Blade Based on the Finite Difference Method and the Finite Element Method

作　　者：靳交通[1] 刘力根[2] 邓航[1] 冯学斌[1] 彭超义[3] 曾竟成[3] 

机构地区：[1]株洲时代新材料科技股份有限公司,湖南株洲412007 [2]南车株洲电力机车研究所有限公司,湖南株洲412007 [3]国防科学技术大学,长沙410073

出　　处：《机械设计与研究》2012年第6期83-85,共3页Machine Design And Research

基　　金：国家863计划资助项目(2007AA03Z563);湖南省重大科技专项资助项目(2009FJ1002)

摘　　要：以某型号2.5 MW风电叶片为研究对象,分别用有限差分法和有限元法计算了叶片在挥舞方向和摆振方向上的挠度分布,并与试验数据进行了对比分析,结果表明,两种方法的计算数据与试验数据基本吻合,满足工程计算精度要求。在叶片结构设计中,两种方法相互校核,提高了计算的可靠性。In this paper, the finite difference method and the finite element method were used to calculate the de-flection distribution of a certain type of 2.5MW wind turbine blade in flapwise and edgewise. The calculation result was compared with the experimental data. The comparison shows that two methods agree with the experimental data, and meet the accuracy requirement of engineering calculation. In the blade structure design, these two methods were testi-fied each other, so the calculation reliability was improved.

关 键 词：有限差分法 有限元法 风电叶片 刚度 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]