基于流固耦合的风力机塔筒动态特性分析  

Dynamic response analysis of wind turbine tower based on fluid-solid coupling

作　　者：潘萍萍[1] 陈长征[1] 孟强[1] 

机构地区：[1]沈阳工业大学机械工程学院,辽宁沈阳110023

出　　处：《可再生能源》2012年第8期46-49,共4页Renewable Energy Resources

基　　金：国家自然科学基金项目(50975180)

摘　　要：塔筒动态特性分析对风力发电机的振动设计起着关键作用。文章以1.5 MW风力发电机塔筒为研究对象,将叶片旋转和随机风载荷作为载荷输入条件,建立风力机塔筒叶片旋转载荷模型、流固耦合风载荷模型、结构动力学方程,分析计算得到随机载荷下叶片旋转和风载共同作用时,风力机塔筒动态特性评估方法。The dynamic characteristic of wind turbine tower is important for the wind turbine vibration design. A 1.5 MW wind turbine tower is analyzed in this paper. The blade wheel load and wind load are inputted as conditions to establish a wind wheel load model, a tower fluid-structure coupled model and a structural dynamics equation. By the analysis, the feasible method for evaluating the dynamic characteristics of wind turbine tower is gotten under both the wind turbine wind load and the rotation of blade at random load.

关 键 词：塔筒 模态分析 动态响应 随机风载 流固耦合 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]