摘要
以华能阜新风力发电塔架为例,首先基于集中质量模型和弹簧系数法建立土-结构相互作用(SSI)计算模型,分析叶片转动产生的轴力,采用塔架动力分析方法考虑塔架动力特性以及叶片与塔架的耦合,将其与机舱、叶片简化为集中质量附加塔架顶部,根据D.Alembrt原理建立锥形管风电塔架结构动力方程,建立考虑土-结构相互作用的锥形管风电塔架的有限元模型,将其与基础约束全部自由度条件锥形管风电塔架做对比分析,得出考虑土-结构相互作用的风电塔架地震作用的位移和加速度都得到很好的控制。
Huaneng Fuxin wind tower,for example,the first model based on lumped mass and spring coefficient method of soil-structure interaction(SSI) calculation model,the axial force generated by blade rotation,consider using dynamic analysis tower dynamic characteristic of the blade and the tower of coupling it with the cabin,leaves reduced to focus on the quality of an additional tower at the top,according to D.Alembrt theory tapered tube set up wind power tower structural dynamic equations,based on consideration of soil-structure interaction wind power tower tapered tube finite element model,based on its constraints and conditions of all the freedom to do tapered pipe wind tower compared and analyzed considering the soil-structure interaction of the wind tower seismic displacement and acceleration have been well controlled.
出处
《建筑结构》
CSCD
北大核心
2010年第S2期116-118,共3页
Building Structure
基金
教育部高校博士点基金项目(20092121110001)
辽宁省"百千万人才工程"优秀人才资助项目(2008921034)
