Error in creating "Contact" in MotionSolve

Nefeli_gki_02

Hello,

I’m encountering an error in MotionSolve when using 3D contact between two gears, one of which I have split into multiple slices in MotionView. The error I get is: "error: contact graphics undefined for contact force [id=301001]!". I imported a valid .STEP file for the gear that I wanted to have in slices. The .STEP file is present in the correct location, and MotionView shows the geometry correctly. Each gear slice has its own body and graphic, and the slices are grouped together using a RigidGroup. I applied contact forces between each slice of the first gear and the whole second gear. The model runs fine if I remove the contact forces and apply normal forces on the slices, so I assume that the bodies and graphics are functional.

I would greatly appreciate any suggestions in solving the issue!

Thanks in advance!

Regards,

Nefeli Gkirtziki

Praful

Hello Nefeli

When contact is defined on a CADGraphic, MotionView uses Hypermesh in the background to get a mesh and write it to the solver deck. It looks like this process is failing !

Would you be able to share the model ?

What you can try as an alternative is to

1. import the mesh in Hypermesh separately
2. export an H3D
3. Add Graphics in MotionView as FileGraphics on the intended bodies.
4. Use these FileGraphic in contact and remove the CADGraphics from the contact list.

regards

Praful