摘要
运用单向流固耦合分析方法，采用Ansys Workbench中的Static Structural模块对伞形风力机整机进行静力学分析。研究其结构上的最大应力应变值及分布集中情况，并分析收缩角、风速和转速等不同变量对伞形风力机的应力应变的影响。分析结果表明：当收缩角度为45°时，应力应变值均达到最大，称之为最大应力收缩角。当伞形风轮转速一定时，最大应力应变出现位置只和收缩角有关。通过数值模拟分析对伞形风力机危险区域进行刚度和强度校核，验证伞形风力机收缩时的安全性与可靠性，为风力发电机系统优化设计提供参考。
Using the unidirection fluid structure interaction analysis method, the staic structural module in Ansys Workbench was used to analyze the statics of the umbrella wind turbine. The maximum stress and strain value and concentrated distribution of the wind turbine structure are studied, and the influence of different variables such as shrinkage angle, wind speed and rotational speed on the stress and strain of the umbrella wind turbine are analyzed. The analysis of the structure showsed that when the shrinkage angle is 45-, the stress and strain value reaches the maximum, which is called the maximum stress shrinkage angle. When the rotational speed of the umbrella wind turbine is constant, the maximum stress is only related to the shrinkage angle. Through numerical simulation of umbrella wind turbine danger zone for rigidity and intensity, the wind turbine was verified of the safety and reliability, to provide the optimum design for the umbrella wind turbine system.
作者
包道日娜
郭晓东
李常春
尚伟
王小雪
Bao Daorina, Guo Xiaodong, Li Changchun, Shang Wei, Wang Xiaoxue(School of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot 010051, China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2018年第9期2576-2584,共9页
Acta Energiae Solaris Sinica
基金
“十二五”国家科技支撑计划(2012BAA06B02)
关键词
风力发电机
单向流固耦合
应力
应变
收缩角
wind turbines
fluid structure interaction
stress
strain
shrinkage angle
