Learning Forum

[longcv5200]

Hi everyone, I have a problem with boundary condition with Simulation Excercise.

Following the problem description, I set up frictionless supports for holes A and B, and applied a 10,000 N force on hole C (in the -Y direction). However, when I solved the model, an 'Invalid Boundary Condition' error appeared.

Do I miss any boundary condition? 

Can anyone help me? Thank you so much

[Armin]

Hello,

This simulation exercise asks students to exploit the symmetry of the structure by modeling only half of the geometry (please see step 1 in the screenshot below from the instructions) and then applying the appropriate symmetry boundary conditions. Have you considered this step?

 

[longcv5200]

Hi, I've spit the model into half. But I don't know how to set the boundary correctly. Hole A and B are inserted by frictionless support and I think it's enough for this model. But Error invalid boundary condition also appeared when I solved the model

[Armin]

Thank you for providing more information.

Ensure that the Symmetry Normal is defined correctly (refer to the image below). Also, use Bearing Load instead of Force as indicated in Step #5 of the instructions.