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Connecting two solids via CBush

Hi together,

I try to connect two solids via Cbush Spring-Damper Elements. Unfortunately the connection between the solids doesn' t seem to work properly. When i set the K properties to rigid, they doesn t work as rigids.

I tried to connect them over two very thin shell meshes one the surface of each of the solids.

Do you have any idea why this happens?

Is there a better way to connect two solids via cbush?

Attached you find the File

Thank you for your help!

Sebastian

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Rahul Rajan_21763

If you have a negligible shell thickness, you will have nearly no bending stiffness so at the ends of the bush element you will have a hinge.
If you increase the thickness of the shells the bending stiffness increases, you are getting more and more rotational stiffness for the bush to connect to.

I recommend to use a RBE3 element to distribute the load from the bush element to the volume elements.

Altair Forum User

Thank you for your reply.

Is it also possible to connect the two solids elastic using a contact?Therefore we need to manipulate the non linear spring, which is responsible for the transverse frictional force in a way to produce a force without having a corresponding normal force?

Best Regards,

Sebastian