Applying a rotation in MES

[benalain]

Hi

Is there a direct way to apply a true rotation in MES ?

I know how to do it in linear (boundary element), but not in MES


Thanks

[Anonymous]

Hi,

Yes, you do it by applying a prescribed displacement. Just right-click the node/part that you want to apply it to and choose "prescribed displacement". This will then follow the specified load curve in time.

Björn

[benalain]

Thanks!

I mean a rotation, not a displacement.

ALAIN

[S.LI]

What I usually do is to 1.) add additional beam elements, 2.) apply rotational prescribed displacement on it, as shown in the attachment.

[benalain]

I just saw, that rotation is also available in the prescribed displacement menu.

Mrs Li, i think there should be a problem between beams and solid elements or have to make a special connection between it.

[Anonymous]

Hi,

But a rotation is also a displacement, it's just applied to a different degree of freedom. If you meant applying a rotation to solid elements, S. Li's suggestion is a good one.

[S.LI]

Rotational prescribed displacement can only be applied on rotational DOFs, which is usually NOT available on regular solid elements. This is why we have to add beam elements.

By saying "add", you don't have to draw new line there. What you can do is

1.) On the surface you are interested in, select these lines

2.) right click and select "Edit Attributes"

3.) change the part number to a new one (not used by your model)

4.) make sure "maintain part boundary" checked.

5.) then you have a new part, and tread it as a regular beam-element part

The connection between beam and solid should be fine.

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@benalain wrote:

I just saw, that rotation is also available in the prescribed displacement menu.

Mrs Li, i think there should be a problem between beams and solid elements or have to make a special connection between it.

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