拓扑优化时设计变量怎么加对称约束？？

hanus

我想做一个8个设计变量（如图的8个不同颜色的正方体）关于它们的中心点中心对称的拓扑优化，但是不知怎么加对称约束，求各位大神指导下下。d:%5C1.jpg

hanus

例子如下：

zkong

定义三个对称面 DTPL卡片TYP=3。

详情看帮助文档:
User's Guide > OptiStruct > Design Optimization > Manufacturing Constraints > Manufacturability for Topology Optimization > Pattern Grouping for Topology Optimization

DTPL卡片文档.

3-plane symmetry (TYP = 3)
This type of pattern grouping requires the anchor point, first point, and second point to be defined.  A vector from the anchor point to the first point is normal to the first plane of symmetry.  The second point is projected normally onto the first plane of symmetry.  A vector from the anchor point to this projected point is normal to the second plane of symmetry.  The third plane of symmetry is orthogonal to both the first and second planes of symmetry, passing through the anchor point.

hanus

zkong 发表于 2012-2-12 23:41
定义三个对称面 DTPL卡片TYP=3。

详情看帮助文档:

谢谢斑竹。我读了帮助，感觉收获不少。