Questions tagged [wheels]

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How is rolling resistance accounted for in the Pacejka Curves?

I am simulating the acceleration of a car (FSAE) in a straight line. I have data of the Pacejka Curves ($F_x$ vs. $SR$) of the tire we will be using. The thing is that the curve doesn´t pass through ...
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1answer
1k views

Pacejka Formula - natural values

For my racing game I am using a simplified Pacejka Magical Formula: $\mu_{lateral} = \mu_{0} * \mu_{1} * D * \sin(C * \arctan(B * x - E * (B * x - \arctan(B * x))))$ Where: $\mu_{lateral}$ is ...
3
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2answers
456 views

Wheel rolling resistance

I think that some of you know what is rolling resistance. It is force that works in opposite direction to roll and is caused due to deformation of tire. It also affects car wheels. There is one ...
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1answer
1k views

Car Suspension Force Equations

So I have found this equation: $F_\mathrm{suspension} = Kx + F_\mathrm{damper}V_\mathrm{contact}$ Where: $K$ = spring stiffness $x$ = the contact depth of spring(also known as spring compression) $...
6
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1answer
13k views

RC car steering mechanism type

I need to figure out what type of steering does this 1:10 Himoto Buggy Zmoto Z-3 RC car have in order to be able to calculate the steering angle from servo position for a robotics project. Is it the ...
1
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1answer
840 views

Design of Wheels/Tires for a RC Car [closed]

Background Information: My design team is trying to create a small RC car that can climb a 30 degrees incline that is 6inches high. We have two motors on a 3 wheels vehicle with the motors powering ...
20
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7answers
7k views

Why do cars turn by turning the front wheel?

Why do we design cars to turn by turning the front wheel? Wouldn't it better to keep all wheels straight and turn by rotating the wheels on one side of a car more then the wheels on the opposite side ...
6
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3answers
447 views

Why do cars have beveled tires?

If you look at a tire from the rear, you'll notice that the tire isn't quite a cylinder. It has edges that are slightly beveled. Sometimes this effect is clearly apparent, but other times, as in many ...
22
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6answers
14k views

Why do car wheels have holes?

If you have a look at the car's wheels, you'll notice that they have holes which can be of different forms (mostly circular or rectangular). Why do they have such holes? Doesn't that reduce the ...

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