HyperWorks_Analysis on a imported mesh geometry

Emily Liu

Hello!

I am new to HyperWorks and HyperMesh and I tried to import this mesh geometry from rhino. I want to analyze this geometry as a simply supported cantilever beam with one end fixed and one moment on the other end. Everything was fine when setting up the property, material, and load collectors. However, when I try to use optistruct to do a simple maximum displacement analysis, the solver would tell me there is an error during the element quality check. Does anyone know what might be causing the problem? 

Also, I set the property of this geometry to PSHELL, I am not sure if this is correct or not. Should it be PBeam or PBar instead?

In addition, I wanted to ask if anyone has advice on the correct component type to import to hyperworks. Or if anyone has good resources on correct importing steps to Hyperworks from rhino. For example, should I mesh the geometry in rhino before importing or importing it as a solid and then mesh it in hyperworks? I tried just importing it as a solid geometry but it wouldn't let me select faces to set load collectors.

Thanks!!

 

 

PaulAltair

It looks from your image like that is just stl facets of the outer surface of your part, these are somewhat arbitrary 'trias' used to describe the geometry. If you set them as PSHELL as you have here, thereby making them structural elements, they will have very poor quality, and also only represent the outer surface of your part. You need to remesh these and then create a solid mesh, you could use tetras, but it looks like you should be able to create a good hex mesh on this part (does it have constant section?, you could quad mesh one end and drag it to create the hexas in that case). Solid geometry from Rhino may work better, again, you need to mesh it first, before defining your loads.