Rigid Body Dynamics

Rigid-body dynamics studies the movement of systems of interconnected bodies under the action of external forces. The assumption that the bodies are rigid, which means that they do not deform under the action of applied forces.

Wheel Drop Test Simulation

Represents how shock absorber works.

#1 No absorber.

Hard contact between tyre and ground, high impact force on structure. 50000N.

#2 Spring and small damping

Spring with low damping. Force reduced to 15000N. However wheel bounces due to low damping. The bounce is not wanted because wheel will lose traction while bouncing.

#3 Spring and bigger damping

Spring and bigger damping. Impact force 15000N and it only bounces once. So the tyre can keep contacting with ground.

Pool Game

This is to simulate ball impacts in a pool game. The first ball traveled toward the other two while spinning.

Fall Off Analysis

This analysis was to solve material handling problem by finding out the maximum moving speed.

An Ancient Differential Mechanism

This mechanism was used in ancient China. The arrow on this vehicle is always pointing to the south no matter how it moves.