筒形结构抗屈曲加劲肋优化设计

Optimization Design of Stiffener for Buckling in Cylindrical Structure

针对风电塔筒极易发生屈曲破坏的问题,以筒形结构抗屈曲加劲肋设计为例,提出了一套集成化风电塔筒抗屈曲加劲肋设计方法。采用APDL语言进行建模和加载,自动提取屈曲计算结果作为参数,建立优化的状态变量和目标函数,采用零阶函数对数目众多且离散的变量进行优化,并可提供多组可行数据供用户比对分析。算例分析表明,该方法有效可行。

For wind tower buckling problem, taking design of the cylindrical structure stiffener as an example, this paper puts forward a set of wind power tower stiffener design method. APDL language is used to establish model. Then the results of buckling calculation are extracted as parameters to build the state variables and objective function. Finally, the zero-order function is adopted to optimize numerous discrete variables. Meanwhile, it can provide multiple sets of feasible data for the user. The example analysis shows that the method is effective and feasible.