How to move wheels on plane in Simscape Multibody

Hi guys, have been struggling for this problem for quite a long time, hope that I can get help on this. I have build a 3D model in simscape multibody by importing the assembly from SOLIDWORKS, I wanted to move the wheels on a plane but keep getting various error when I try to modify the models by referring to similar case. The files are attached in this link https://drive.google.com/drive/folders/1aYxW1RzrWQvuvkwFEDFp8hZYaWoQK47v?usp=sharing. Thank you!

Answer 1

[Steve Miller]

I tried to download your files, but Google said they are not there.

Depending on how you modeled the system and contact, there are many different errors that could occur.

Some common issues:

1. Simulating with a fixed-step solver will usually lead to errors unless you have tuned it carefully. Try using a variable step solver.
2. Make sure your vehicle starts above the surface of the ground.

--Steve