Force from road on bump
Force from road on bump
(OP)
Hi Folks,
I have got a basic doubt here.I just want to understand the concept behind the (reaction) force from the road on the wheel and the vehicle when the vehicle crosses a bump.
When the tyre is still in contact with the road even on the bump, what causes the force from the road when the vehicle finishes the bump.
I have got a basic doubt here.I just want to understand the concept behind the (reaction) force from the road on the wheel and the vehicle when the vehicle crosses a bump.
When the tyre is still in contact with the road even on the bump, what causes the force from the road when the vehicle finishes the bump.





RE: Force from road on bump
RE: Force from road on bump
I just want to understand the basic physics behind it. how is the reaction force created when the vehicle crosses the bump?
RE: Force from road on bump
Don't forget about momentum. If the upward side of the bump is steep enough then the upward-moving wheel may have enough inertia that it takes longer to reverse direction than the profile of the bump does, in which case the tire will momentarily lose contact with the ground.
RE: Force from road on bump
Excellent!Thanks a lot for your insights. will explore it and get back to you after enlightenment.Thank you so much.
RE: Force from road on bump
Can we say that when the speed is considerably low and hence when there is full contact of the tyre on the road,there is very less shock on the springs and the vehicle? Need your inputs please.
RE: Force from road on bump
Everything has inertia.
The force between hub and body is determined by spring and damper/shock, as function of deflection and suspension velocity.
The force between the hub and the ground is determined by the distance between them and the spring rate of the tire.
(not affected much by velocity, though some damping in tire carcass.)
Those are some of the basics, right?
Jay Maechtlen
http://www.laserpubs.com/techcomm
RE: Force from road on bump
RE: Force from road on bump