Tuesday, February 19, 2013

Tire model

Just a short post to show the tire-road contact model that I will use for the dynamical model of a bicycle that I'm developping. The model is fully "analytical", no multi-body software used. There are some secundary features lacking but the core is already done.

The GIF shows a 2kg wheel (R=0.34m) falling from 0.5m to a irregular road (maximum amplitude of irregularities=0.07m). Tire stiffness and damping are taken from previous posts of this blog. IC have been chosen randomly.

As you can see just after the impact, this road profile-wheel combination is near the limit of the single contact point condition that the majority of tire load models use. Some plots:

That's all for today. Greetings