Issue with Contact analysis in Simscape - solid body contact

Hi,

I am trying to simulate a gear pair contact analysis in Simscape where I import the bodies from stl file. Upon simulation, the gear tooth meshings are not happening correctly and I have severe interference. I tried solving the issue with different solvers, but still the meshing is not appropriate. Could you please suggest how I can solve this issue?

Thanks,

Anand

[Yifeng Tang]

I wonder how your geometry is set up. Is each gear tooth a separate part in Multibody or the whole gear is one part? I'm asking because Simscape only support export of convex hull of arbitrary geometry files for contact analysis, so I wonder whether that's the case. I'm not suggesting that you have each tooth as a separate part; that's going to be a LOT of contact force blocks.

One possible solution is to use the point cloud in multibody to represent your gear geometry.