How to separate the Design from the Non-Design Space in HyperMesh / OptiStruct

Hello,

to define a Non-Design Space for optimization, you need to create a separate component and property. It is necessary to either separate the areas on a geometry level (i.e. before meshing) or on the element level (after meshing).
To do this on the geometry, you need to create different geometry areas. The geometry solids or surfaces need to be connected in order to get a coincident mesh on the shared surfaces and lines. This is done using Boolean Operations on 3D geometries and Geometry Cleanup on 2D geometries.

After meshing, you still can move areas to the Non-Design component. Please use the 'organize' function within HyperMesh.

The following movie shows all necessary steps on a simple part:

http://screencast.com/t/AO8bdmh9E7

Jan

how to create design space and non-design spce after it is in the midsurface form??

You have to mesh the midsurface, organize the elements into different components and assign different properties, refer the property of those elements you want designed while defining the design variable. 

Hello, thanks Rahul for your response, I followed the link and it's dead. do you have an updated link?

Also, is it possible to add a non design surface to a current body?

Thanks for your help.

Regards

AC