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R
Ramax1-Visitor
1-Visitor
January 22, 2020
Question

Creo Simulate-Frictionless support vs Symmetry

  • January 22, 2020
  • 1 reply
  • 1697 views

Hello guys,

for Structural analyses, Creo (as most other FEA programs) offers a "Symmetric" constraint to facilitate computation of, well, symmetrical problems. What I don't get: How is this constraint different from just fixing (translational) movement orthogonal to the symmetry plane? If there were no difference at all, there would be no need for a separate "symmetric" constraint. Can someone help me out?

 

Thanx a lot.

1 reply

A
Alex_Cazacu17-Peridot
17-Peridot
January 23, 2020

Hello,

 

I guess that in some cases the interest is to see the deflection/strain in the parts/assemblies generated by the symmetrical loads. If we consider a larger assembly, or a part with complex surfaces, loaded symmetrically, the loads affect the part/assembly, even if they are symmetrical, so they can't be changed to a friction-less support. 

 

Thanks,

Alex

R
Ramax1-VisitorAuthor
1-Visitor
January 23, 2020

Hello Alex,

thanks a lot. From what I understand, you mean that in some cases a frictionless support would cause a loss of information. Unfortunately I think I still don't really get the point. What exactly is different with a frictionless support? (Could you maybe give an example?)

 

Thanks a lot again

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