大型风力机叶片三维建模及模态分析  

3D Modeling and Modal Analysis on Large Wind Turbine Blade

作　　者：赵明安[1] 孙大刚[1] 张海龙 刘志成[1] 杨楠[1] 李占龙[1] 

机构地区：[1]太原科技大学机械工程学院,太原030024 [2]邯郸爱华机械电子有限公司,河北邯郸056001

出　　处：《太原科技大学学报》2012年第3期190-193,共4页Journal of Taiyuan University of Science and Technology

基　　金：教育部高等学校博士点基金项目(200801090001);太原科技大学研究生科技创新项目(20111015)

摘　　要：对大型风力机叶片开展了三维建模和模态分析。先确定叶片几何参数,再将其翼型平面坐标转换为空间坐标,并通过Proe生成叶片三维几何模型。采用模态提取方法 Block Lanczos法对叶片进行模态分析,得出了叶片的前10阶模态,结果显示叶片的主要振动形式为挥舞和摆振,有较强的抗扭转能力,设计中应加强叶片的弯曲刚度。这为大型风力机叶片的设计和优化提供参考。For large wind turbines blade,the method of 3D modeling and modal analysis were studied.Firstly,geometry parameters of blade were determined,then the airfoil plane coordinate was transformed into space coordinates,and 3-D models were generated through Proe.Modal extraction method of Block Lanczos was adopted to analyse vibration modal of blade.The first ten modals of blade were obtained and analysed.Results show that the main vibration forms of blade are flap and lead-lag,which possess strong ability to resist torsion.The design should strengthen the bending stiffness of blade.The analysis result can offer references for the design and optimization of large wind turbine blade.

关 键 词：风力机叶片 三维建模 模态分析 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]