I am conducting an Abaqus simulation involving a solid cylinder and a solid sphere, both having the same mass and outer radius, rolling without slipping on an inclined surface under the influence of gravity, initially at rest. My goal is to demonstrate that the solid sphere should roll faster than the cylinder due to differences in moment of inertia. However, I have observed that the rolling speeds and angular accelerations are the same. I have applied gravity load, inertia mass, and rotary inertia.
Could anyone please advise me on what might be incorrect in my simulation?