Flexible bodies and translational joints?

Hi,

I want to model a rail as a flexbody in ADAMS. However to do this I need to create rbe2 on the top surface of the rail shown in red and create a translational joint between the rail and another part. This will make the rail rigid.

How would you approach to this problem?

0 Maziar R over 8 years ago

Hi Koray,

Could you explain why you need to create RBE2 elements on the whole top surface?

Thanks,

Maziar
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0 Koray over 8 years ago

For creating an interface node to use in ADAMS. I cant use rbe3's for mnf generation, can I.?
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0 Maziar R over 8 years ago

I think I did not pose my question properly. What I am trying to ask is:

Why do you need to create the rbe2 elements on the "whole" top surface? Why do you not create the rbe2 elements at, for example, where you have connections?

I hope I am clearer now.

Thanks,

Maziar
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0 Jesper Slattengren over 8 years ago

Yes, you can use RBE3 elements.
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0 Koray over 7 years ago

I will have a connection (translational joint) on the whole top surface.
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0 Maziar R over 7 years ago

Well, as JSlatten mentioned, you can use RBE3 elements. For that AUTOMSET parameter needs to be set in the SOL 103 deck.

General note: when you define an ideal joint such as a tranlational joint on a surface, it is as if the whole top surface is glued t a single point in reality. Is this the case in the actual physical test rig?
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