摘要
针对长叶片的特点，建立了正确反映叶片剪切作用和形心、剪心及其沿叶高变化率的描述长叶片的完整空间扭曲梁有限元模型和分析方法．该模型和分析方法正确描述和反映了长叶片弯曲和扭转的耦合效应。
In accordance with the structure properties of steam turbine long blade, a complete bendingtwisting beam finite element model and analysis method are set up, which can indicate the shear effect and the variation of centroid and shear center along blade height. The model and method precisely describe the deflection characteristics of coupled bending and twisting of long blade and hence have wider adaptability and greater precision in calculation.
出处
《西安交通大学学报》
EI
CAS
CSCD
北大核心
1998年第1期33-37,共5页
Journal of Xi'an Jiaotong University
基金
国家自然科学基金
关键词
有限元法
汽轮机
叶片
弯扭耦合变形
扭曲梁
F E M turbine blade coupled bending and twisting stress frequence
