Cylindrical Joint in Optistruct

Altair Forum User

Hello,

 

I am trying to add a cylindrical joint between two parts and apply a moment onto one part, something similar to a Hinge

But the elements tend to collapse (expand and scale up) and not stable

I have tried Cbeam elements with torsional moment as negligable, but having the same effect

Can you let me know how to create stable joint in Optistruct

 

Thanks and Regards

Koti

Rahul Rajan_21763

could you share .fem file?

Altair Forum User

Hello Rahul,

 

I have sent a sample file

Please check and let me know

 

Regards

Koti

Rahul Rajan_21763

Joints option is available for Optistruct MBD analysis.Refer optistruct MBD analysis tutorial for same.You have setup simple static analysis where structure would tend to deform upon loading.

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Altair Forum User

Altair Forum User said:

I am trying to add a cylindrical joint between two parts and apply a moment onto one part, something similar to a Hinge

 

Maybe you can use an SPC and release the DoF to realize as a cylindrical joint. For instance, a cyl joint along X axis (translates in X and revolves around X) release Dof 1 and 4. Try as a work around.

Altair Forum User

Thank you Rahul for the time and clarification

Will check out the MBD option and see how to best suit for my condition

 

Thank you Prakash, but with SPC I don't want to restrict the surrounding parts movement

Rahul Rajan_21763

What is the end objective of analysis?