大型分段式风电叶片刚度及模态有限元分析  

LARGE SECTIONAL TYPE WIND TURBINE BLADE FINITE ELEMENT MODELING AND STIFFNESS AND MODAL ANALYSIS

作　　者：秦超[1,2] 侯彬彬[2] 陈康[1] 刘奇星[2] 卜继玲[2] 高康[2] 

机构地区：[1]西南交通大学牵引动力国家重点实验室,成都610036 [2]株洲时代新材料科技股份有限公司,株洲412000

出　　处：《玻璃钢／复合材料》2016年第12期34-37,共4页Fiber Reinforced Plastics/Composites

摘　　要：以某54 m分段风电叶片为研究对象,建立了分段叶片有限元模型,对分段叶片进行了刚度计算和模态分析,并分别与原始叶片对比。分析结果表明:四种极限工况下,分段叶片刚度与原始叶片基本一致;分段叶片前两阶振型与原始叶片一致,且前两阶固有频率基本吻合;叶片分段未对叶片振动性能带来很大影响,验证了此分段叶片结构刚度和振动性能的合理性。In this paper,the finite element model of a 54 m segmented wind turbine is established,and the stiffness and modal analysis are carried out for the segmented blades. Calculation results show that,under the four limit condition,the segmented blades stiffness and the original blade are basically the same： Segment is consistent with the original leaf blade in the first two modes and the natural frequencies are basically consistent. Blade segments of blade vibration performance have a great impact,verifying the rationality of the segmented blades structure stiffness and the vibration performance.

关 键 词：有限元法 刚度 振型 固有频率 分段叶片 

分 类 号：TB332[一般工业技术—材料科学与工程] TK83[动力工程及工程热物理—流体机械及工程]