Weird collisions between plane and mobile wheeled robot

Isaac Sim Version

5.1.0
5.0.0
4.5.0
4.2.0
4.1.0
4.0.0
4.5.0
2023.1.1
2023.1.0-hotfix.1
Other (please specify):

Operating System

Ubuntu 24.04
Ubuntu 22.04
Ubuntu 20.04
Windows 11
Windows 10
Other (please specify):

Topic Description

Wheeled mobile robot experiences bumpy motion when moving over a flat plane.

Detailed Description

I am running a simulation with a mobile robot, the colliders are four cylinders for each wheel and the surface is a flat plane, the motion seems bumpy like moving on a uneven terrain. I have noticed that if I put my robot over a ground plane, it behaves pretty well without bumpy motion.

I have a few questions regarding this,

  • How can I fix this?
  • What makes a plane with a collider behave different compared to a GroundPlane?

Screenshots or Videos

Additional Information

What I’ve Tried

  • Changed physics and collision solvers
  • Remeshed the plane

Related Issues

You can try checking Enable CCD in the rigid body attribute of the wheel

And how did you create your flat plane? Do you have any terrain imported?