tire marker for a steering wheel

Luca Cavagna

Hello

I have a general doubt about the tire marker to be used for tires. I have always used a global frame but now my doubt comes when I allow the front tires to steer. Should I use a local marker? How will the lateral slip consider the steer angle I set?

GTT Adam

Hi Luca,

For the creation of an AutoTire entity, you must specify the hub body, wheel center point, tire marker, and road marker. The tire marker Y axis must be aligned along the spindle axis to account for the inclination angles of the tire and must be attached to the same hub body, as to move with the tire as it is steered.

If we look at the sedan model, we can see the definition of the front tire pair:

And if we look closer at the Front Tire Force Reference marker:

You can see it is attached to the same hub body (Wheel) and aligned using a vector pair called Front Spindle.

 

Hope this helps!

Adam Reid