大型风力机复合材料叶片研究（英文）  

Study on Large Wind Turbine Composite Blade

作　　者：周里群[1] 郑明远[1] 彭杰[1] 李玉平[1] 邢帅恒 

机构地区：[1]湘潭大学机械工程学院,湖南湘潭411105

出　　处：《湘潭大学自然科学学报》2015年第1期76-80,共5页Natural Science Journal of Xiangtan University

摘　　要：建立了大型风力机叶片的三维有限元模型,在考虑旋转惯性力等外力因素下,分析和对比了不同工况下叶片的振动频率,同时对叶片复合材料铺层角度和模态频率大小之间的关系进行了研究.结果表明,叶片模态频率受应力刚化影响较大,通过改变叶片单向层的纤维铺层角可对旋转叶片的模态频率进行调整.Large wind turbine blade model is analyzed based on finite element method.Research and comparison of blade natural frequencies is made in different rotational working conditions taking into account external factors such as the rotational inertia force.Also the relationship between the composite ply angle and natural frequency is analyzed.The result shows that the nature frequency of large wind turbine blade is influenced greatly by the stress stiffening effect for the blade rotation.And the nature frequency of large wind turbine blade can be designed by adjusting the single fiber layer ply angle of blade.

关 键 词：风力机 复合材料叶片 模态频率 铺层角度 

分 类 号：TM910.4[电气工程—电力电子与电力传动]