摘要
以三心圆柱面网壳结构为例,采用通用有限元分析软件ANSYS的二次开发语言APDL为开发工具,将网壳结构的杆件截面积和厚度作为离散型设计变量,以网壳结构的总质量作为目标函数,并考虑网壳的强度、稳定、挠度以及截面规格等约束条件,采用改进的一维搜索算法和满应力准则法对网壳结构进行优化。工程实例表明,该优化设计原理简单,收敛速度快。
The design process of structure optimization was discussed with an example of a three-column latticed shell by ANSYS software. The grid structure height and member cross setion dimensions of space truss were taken as the discrete variables. The total weight of space truss was considered as the objective function. The restration condition such as strength, stability, stiffness and the structural deformation were considered. The one-dimensional search method and the modified stress ratio method were adopted as the optimization method.Project examples showed that the principle of optimization design was simple and the algorithm had fast convergence.
出处
《钢结构》
2013年第7期39-42,共4页
Steel Construction
关键词
网壳结构
优化设计
APDL语言
离散变量
shell grid structure
optimum design
ANSYS Parameter Design Language（APDL）
discrete variable
