Errors with 3D Contact (cylinder-cylinder): Creo Mechanism

Question

Hello,

I am trying to model a retracting pin which allows a spring loaded mass to drop freely in the z-axis using Creo 8+. However, I keep getting the following error:

"3-D contact in model has encountered an error:
In a cylinder-cylinder contact, the rectangular contact patch is invalid.
This violates contact-patch assumptions related to Hertzian compliant contact
calculations."

As far as I can tell, there is no interference in my model, no erroneous material properties, etc.

I have been using dynamic analysis for this, and the pin is removed using a translation servo motor. The mass is constrained in the x & y by two pin constraints. I do not have friction enabled, nor gravity.

Any help you could give would be greatly appreciated! I have already tried changing the contact to a point-cylinder & decreasing the contact radius of the point.

Catalina · Answer

Hi @MB_14348875

Thank you for your post.

Your post appears well documented but has not yet received any response. I am replying to raise awareness. Hopefully, another community member will be able to help.

Also, feel free to add any additional information you think might be relevant. It sometimes helps to have screenshots to better understand what you are trying to do.

Best regards,

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