摘要
针对某大型风力发电机组,通过ANSYS有限元软件对其建立有限元模型,对风力发电机塔架进行模态分析,确定其固有频率和振型,比较塔架的固有频率与风轮的工作频率或风轮3倍的工作频率之间的相对差,计算结果表明,塔架为刚性塔,不会与风轮产生共振,且弯曲振动为塔架的主要振动形式,为作进一步的动态分析提供了理论依据。
In this paper,finite element model of wind turbine tower is established by finite element software ANSYS,and process modal analysis to determine the natural frequencies and mode shapes.Comparing relative difference of towers’ natural frequencies and wind wheels’ operating frequency or three times the operating frequency,the results indicate the tower is rigid tower,and not resonate with the wind wheel.A theoretical basis is provided for further dynamic analysis.
出处
《装备制造技术》
2011年第3期41-43,58,共4页
Equipment Manufacturing Technology
