optistruct中，定义了强制位移,loadstep要面板怎么设置，spc选...

saosaoli

optistruct中，定义了强制位移,loadstep要面板怎么设置，spc选什么，load选什么？

nulixuexi

如果只创建了一个loadcollector，那么把spc和强制位移都放在这个载荷集里，然后在这一步只选择spc即可；
其实os推荐的是另一种方法，通过spcd卡片创建强制位移，spcd是一种载荷，需要在load选项卡引用。


官方的答案：
How can I specify an enforced displacement in a subcase (or loadstep) in an OptiStruct input deck?  
There are two ways to do this:

1. Create a single SPC definition containing the enforced displacement information and reference this within the subcase (loadstep) definition.  

2. Create an SPC, SPCD pair, with the SPC constraining the dof that is to have the enforced displacement and the SPCD defining the magnitude and dof of the enforced displacement. Both must be referenced in the subcase (loadstep) definition.