Mechanics of a car turning left

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The discussion centers on the mechanics of a car turning left, drawing parallels to the physics of a billiard ball's interaction with a cushion. It emphasizes that while a billiard ball experiences a single impact, a tire's interaction with the road involves continuous forces due to tread distortion and requires a force couple for effective turning. The complexities of tire dynamics are highlighted, including the effects of vertical load, camber, and the friction circle, which influence cornering performance. Participants suggest that understanding these dynamics requires comprehensive literature and acknowledge the challenges in modeling such interactions accurately. Overall, the conversation underscores the intricate relationship between tire-road interactions and vehicle dynamics during turns.
  • #31
vr-marco said:
A train would work as well with independent wheels
That sounds right but the above video implies that the axle needs to be rigid for directional stability. To work with a rigid axle, the rotation rate must be proportional to 1/radius of curvature for both wheels, if slipping is to be avoided so the slopes on the cones need to be appropriate. The video doesn't actually say how the optimum cone angles are calculated; they will depend on the gauge of the rails, I guess.
 

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