Learning Forum

[navidMnzh]

Hi! Wish u are having a nice day!

I'm working on a project which I need to set a remote displacement on a free standing remote point.

Here is the place where I need the point:

[Ashish Khemka]

How are you constraining the bodies on which thermal conditions are applied?

Regards Ashish Khemka

[navidMnzh]

I do that in thermal analysis, by defining two Thermal Conditions.
One is 0 degrees and another is 10, and I apply each one to each surface.
Initial temperature is also 0.

[peteroznewman]

It looks like you have 1/2 symmetry for this model. Is the model fully axisymmetric? If so, you should do a 2D axisymmetric analysis, it will be much faster to get an accurate result.
If it is axisymmetric, but you want to stay in 3D, take another slice at 90 degrees and do a 1/4 symmetry model. That way you can put symmetry boundary conditions on both planes which will constrain 5 DOF on each body. All you need to prevent a pivot error is to constrain one vertex (or node) in one direction, the axis direction, on each body.

[navidMnzh]

Thanks for the help!
But the new question is, how am I supposed to turn this quadratic surface shape into a full sphere?
I did what you explained for me, made a 1/4 of the shape, and constrained two points in one direction:
In the older shape, I used to use the symmetry option like below:
and normally, this option now gives the the half of the sphere.

[peteroznewman]

Oh! The geometry you started with a 2D surface, I assumed it was 3D, but now I take a closer look, I can see it is 2D.
Since it is 2D, there is no need to add a constraint on a vertex for the third direction, since the model has no third direction!
Since you want to do graphical expansion of an Axisymmetric model, you should keep the full axisymmetric geometry, just add a split that you can use to constrain the Y direction.
In Mechanical, add a Y=0 to the two edges you created.

[navidMnzh]

Thanks a lot sir!
I used the split edge option in designModeler and now I have fixed the system from the center.
Thanks for your help!