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Using a derived variable as an input variable for another study

Posted Mar 27, 2013, 10:15 p.m. EDT Mesh, Results & Visualization, Structural Mechanics Version 4.3a 2 Replies

Jeffrey Fong
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Hi,

I have searched through a lot of these threads but I can't seem to find a good answer.

I have applied an oscillating body load to a resonating structure (Model 1) and I am able to plot the displacement (u) of a particular point (93) in the geometry as a function of time. Now I need to use the displacement of that point as an expression for the prescribed deformation of a Moving Mesh in Model 2.

How do I map the displacement (u) of that point (93) from Solid Mechanics of Model 1 to the Moving Mesh of Model 2?

Thanks,
Jeffrey

2 Replies Last Post Mar 31, 2013, 7:21 a.m. EDT
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago Mar 28, 2013, 3:21 a.m. EDT
Hi

if you have separate models, the easiest is to export the "u" value into a file and then import it as an interpolation function to drive your displacement in the other model.

Only thing, point loads in anything larger than 1D physics tend to make singularities, locally the results are often quite wrong, but globally they are often acceptable

--
Good luck
Ivar
Hi if you have separate models, the easiest is to export the "u" value into a file and then import it as an interpolation function to drive your displacement in the other model. Only thing, point loads in anything larger than 1D physics tend to make singularities, locally the results are often quite wrong, but globally they are often acceptable -- Good luck Ivar
Jeffrey Fong
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Posted: 1 decade ago Mar 31, 2013, 7:21 a.m. EDT
Thanks, I will give that a try.
Thanks, I will give that a try.

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