摘要
根据2种模型各自的特点,构建一种混合梁壳模型。以DTU 10 MW叶片为例,对3种模型在模态、变形、应力、计算效率方面进行对比。结果表明,混合梁壳模型在结合位置存在边界效应,导致该区域附近的结果出现失真,但不影响其他区域结果的精度,同时该模型具有较高的计算效率,可为叶片结构设计和分析提供指导。
Based on the characteristics of the two models,a mixed beam-shell model is created.Taking DTU 10 MW blade as an example,the three models are compared in terms of modal frequency,deformation,stress,strain and computational efficiency respectively.The results show that the mixed beam-shell model has a boundary effect near the combined position,which leads to distortion of the results in this area,while other areas maintain high accuracy.Meanwhile,the mixed model is of high efficiency,which can provide guidance for design and structural analysis of wind turbine blades.
作者
郭光星
张磊
唐荆
杨科
Guo Guangxing;Zhang Lei;Tang Jing;Yang Ke(Institute of Engineering Thermophysics,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China;National Energy Wind Turbine Blades R&D Center,Beijing 100190,China;Wind Energy Key Laboratory,Chinese Academy of Sciences,Beijing 100190,China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2021年第7期366-371,共6页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(51776204)
中国科学院战略性先导科技专项资助(XDA 21050303)。
关键词
风电叶片
结构响应
有限元分析
混合梁壳模型
wind turbine blades
structural response
finite element analysis
beam model
shell model
mixed beam-shell model
