兆瓦级风力发电机组变桨机构桨叶盘的模态分析  

Modal Analysis of the Blade Plate of Pitch Mechanism of MW-level Aerogenerator

作　　者：韩玉强[1] 

机构地区：[1]宝鸡文理学院机电工程系,陕西宝鸡721016

出　　处：《新技术新工艺》2013年第2期22-24,共3页New Technology & New Process

摘　　要：利用有限元分析软件ANSYS对某型号兆瓦级风力发电机桨叶轴承系统进行了模态分析,通过计算得到额定转速下桨叶盘的振型和前5阶固有频率,找到工作中容易发生共振的频率区域,为进一步提高变桨精度和变桨平稳性提供了理论依据。The modal analysis of a MW-tevel aerogenerator blade bearing system was done by finite element method, and its vibration models and first five natural frequencies under the rated speed were obtained. The frequency region in which resonance is apt to occur was found. It can offer theoretical proofs for improvement of accuracy and stability of pitch.

关 键 词：风力发电机组 变桨机构 有限元分析 模态分析 

分 类 号：TH113.1[机械工程—机械设计及理论] TH132.41