The importance of a good suspension setup

In a race, the car’s suspension setup can make a huge difference. There are basically three important steps to set the suspension of a Formula 1 car
Softer suspensions gives a greater comfort to the driver, while his is attacking the turn (we often see the formula 1 cars flying over them) but if they are very soft, the high pressure that the Formula 1 car is subjected (called downforce) can make the car touch the ground, it makes you have a taller car in relation to the ground, reducing the performance and stability at a straight line.
In the photo, Ayrton Senna in a straight with a very soft suspension, the car touches the ground
Hard suspensions allows engineers to put the car closer to the ground, the suspension hardness prevents the car to touch the ground. On the other hand, whit a harder suspension the car absorb less impact, this increases the probability of the car take off all 4 wheels off the ground when the driver attacks the turn, which can cause loss of control and make de driver hit the wall.

Sebastian Vettel Attacking the turn

The steps to get a good suspension setup are:
1.1) Raise the car and take the measure of the suspension.
1.2) after it, put the car at the ground, with fuel and all fluids, but still without the driver, measure the suspension again.
1.3) With all of this itens above and the driver, in a totally horizontal floor, measure again the suspension.
The difference between 1.1 and 1.2 is called static course, that means how much the suspension goes down the car’s weight, with it we can know if we’re allowed to make the car higher or lower.
The difference between itens 1.2 and 1.3 is called load course, which says really how much the car goes down with the driver. If the load course is small, the car needs a softer spring, if the car has a high load course, we put a harder one.
2) Compression damping:
The compression damping says how much height variation the car will have, the dumper must to compress quickly enough to absorb the impact in a turn, hard enough to not make the car touch the ground in the straight, but not so much hard because the car needs to lose some hight in the straight, to be as closer the ground as possible. The balance is where the dumper has a smooth compression.
3) Damping return:
The damping return is responsible for the “speed” the dumper returns at it’s natural shape, whit more damping return (harder dumper), the car returns to it’s original position slower, but if we use a low damping return, the car will be soft at turns (because it returns at it’s original position faster) causing loss of stability.

Mc Laren’s suspesion
Above we note how complex the suspension of a formula 1 car is, the placement of dumpers, so much different from street cars that are in vertical position, in Formula 1 they are in a horizontal position, we note the suspension triangles too, made of carbon fiber, much stiffer and lighter than road cars ones.
I hope you enjoyed,
Rafael Basilio
  1. No trackbacks yet.

Deixe um comentário

Preencha os seus dados abaixo ou clique em um ícone para log in:

Logotipo do

Você está comentando utilizando sua conta Sair /  Alterar )

Foto do Google+

Você está comentando utilizando sua conta Google+. Sair /  Alterar )

Imagem do Twitter

Você está comentando utilizando sua conta Twitter. Sair /  Alterar )

Foto do Facebook

Você está comentando utilizando sua conta Facebook. Sair /  Alterar )

Conectando a %s

%d blogueiros gostam disto: