摘要
利用ANSYS有限元软件,建立了海上风机"基础-塔筒-机舱-轮毂-叶片"耦联整体结构的有限元模型,分别运用m法和P-y曲线法分析了土-结构相互作用对海上风机整体结构的自振特性的影响,结果表明:土-结构相互作用对海上风机整体结构自振特性的影响比较显著,且P-y曲线法比m法更合理。
A finite element model of foundation, tower, nacelle, hub and blade of overall offshore wind power structure is established by using ANSYS software. The influence of soil-structure interaction on free vibration characteristics is an- alyzed respectively with m-method and P-y curve method. The analysis results show that the effect of soil-structure inter- action for offshore wind power structure is significant and P-y curve method is more reasonable than m-method.
出处
《水电与新能源》
2013年第1期70-73,共4页
Hydropower and New Energy
关键词
海上风电
三桩基础
土-结构相互作用
M法
P—y曲线法
模态分析
offshore wind power
triple-piles foundation
soil-structure interaction
m - method
P-y curve method
modal analysis
