F1 Cars
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28-01-2009, 01:53 PM


INTRODUCTION

Car racing is one of the most technologically advanced sports in the world today. Race Cars are the most sophisticated vehicles that we see in common use. It features exotic, high-speed, open-wheel cars racing all around the world. The racing teams have to create cars that are flexible enough to run under all conditions. This level of diversity makes a season of F1 car racing incredibly exciting. The teams have to completely revise the aerodynamic package, the suspension settings, and lots of other parameters on their cars for each race, and the drivers have to be extremely agile to handle all of the different conditions they face. Their carbon fiber bodies, incredible engines, advanced aerodynamics and intelligent electronics make each car a high-speed research lab. A F1 Car runs at speeds up to 240 mph, the driver experiences G-forces and copes with incoming data so quickly that it makes Car driving one of the most demanding professions in the sporting world. F1 car is an amazing machine that pushes the physical limitations of automotive engineering. On the track, the driver shows off his professional skills by directing around an oval track at speeds

Formula One Grand Prix racing is a glamorous sport where a fraction of a second can mean the difference between bursting open the bubbly and struggling to get sponsors for the next season?s competition. To gain those extra milliseconds, all the top racing teams have turned to increasingly sophisticated network technology.
Much more money is spent in F1 these days. This results highest tech cars. The teams are huge and they often fabricate their entire racers. F1?s audience has grown tremendously throughout the rest of the world. .
In an average street car equipped with air bags and seatbelts, occupants are protected during 35-mph crashes into a concrete barrier. But at 180 mph, both the car and the driver have more than 25 times more energy. All of this energy has to be absorbed in order to bring the car to a stop. This is an incredible challenge, but the cars usually handle it surprisingly well

F1 Car driving is a demanding sport that requires precision, incredibly fast reflexes and endurance from the driver. A driver?s heart rate typically averages 160 beats per minute throughout the entire race. During a 5-G turn, a driver?s arm ? which normally weighs perhaps 20 pounds ? weighs the equivalent of 100 pounds. One thing that the G forces require is constant training in the weight room. Drivers work especially on muscles in the neck, shoulders, arms and torso so that they have the strength to work against the Gs. Drivers also work a great deal on stamina, because they have to be able to perform throughout a three-hour race without rest. One thing that is known about F1 Car drivers is that they have extremely quick reflexes and reaction times compared to the norm. They also have extremely good levels of concentration and long attention spans. Training, both on and off the track, can further develop these skills.

THE CHASIS

Modern f1 Cars are defined by their chassis. All f1 Cars share the following characteristics:
They are single-seat cars.
They have an open cockpit.
They have open wheels ? there are no fenders covering the wheels.
They have wings at the front and rear of the car to provide downforce.
They position the engine behind the driver..

The tub must be able to withstand the huge forces produced by the high cornering speeds, bumps and aerodynamic loads imposed on the car. This chassis model is covered in carbon fibre to create a mould from which the actual chassis can be made. Once produced the mould is smoothed down and covered in release agent so the carbon-fibre tub can be easily removed after manufacture.
The mould is then carefully filled inside with layers of carbon fibre. This material is supplied like a typical cloth but can be heated and hardened. The way the fibre is layered is important as the fibre can direct stresses and forces to other parts of the chassis, so the orientation of the fibres is crucial. The fibre is worked to fit exactly into the chassis mould, and a hair drier is often used to heat up the material, making it stick, and to help bend it to the contours of the mould. After each layer is fitted, the mould is put into a vacuum machine to literally suck the layers to the mould to make sure the fibre exactly fits the mould. The number of layers in the tub differs from area to area, but more stressed parts of the car have more, but the average number is about 12 layers. About half way between these layers there is a layer of aluminum honeycomb that further adds to the strength.

Once the correct numbers of layers have been applied to the mould, it is put into a machine called an autoclave where it is heated and pressurized. The high temperatures release the resin within the fibre and the high pressure (up to 100 psi) squeezes the layer together. Throughout this process, the fibres harden and become solid and the chassis is normally ready in two and a half hours. The internals such as pedals, dashboard and seat back are glued in place with epoxy resin and the chassis painted to the sponsor?s requirements.
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01-04-2010, 10:55 PM

please read topicideashow-to-f1-cars-full-report for more of F1 Cars technical information and presentation
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09-05-2011, 10:20 AM

Submitted By:
PRASHANTH D


.ppt   AERODYNAMICS OF F1 RACING CAR1 (2).ppt (Size: 683 KB / Downloads: 256)
AERODYNAMICS OF F1 RACING CAR
WHAT IS AERODYNAMICS ?
Aerodynamics is the branch of dynamics that deals with the motion of air and other gaseous fluids and with the forces acting on bodies in motion relative to such fluids.
In the term AERODYNAMIS, AERO stands for air, DYNAMICS denotes motion. Aerodynamics is an engineering science concerned with interaction between bodies and atmosphere.
WHY WE NEED TO IMPROVE AERODYNAMICS IN F1 CARS SPEED
better the aerodynamic design, higher will be their speeds.
FUEL EFFICIENCY
better aerodynamics , less work for engine.
Down force:
It is the negative lift
A high-pressure region then develops on the upper side of the wing, creating a downward force. This pressure difference causes the net down force.
Down force is necessary for maintaining speed through corners. Due to the fact that the engine power available today can overcome much of the opposing forces induced by drag, design attention has been focused on first perfecting the down force properties of a car then addressing drag.
Wing theory
Uses the same principle as an aircraft.
Aircraft uses lift whereas f1 cars uses down-force.
Drag- another important factor on an f1 car.
Working Principle
The basic principle behind this is the Bernoulli’s Principle.
This principle can be used to calculate the lift force on the air foil, if the behavior of the fluid flow in the vicinity of foil is known.
According to this principle, the pressure on the surfaces of the wings will be lower above than below. This pressure difference results in upper lift force, thus lift force can be calculated using this principle .
Rear wing
Diffuser

Situated at the underside of the car behind the rear axle line.
Consists of many tunnels and splitters to control airflow.
Maximizes suction effect thus increasing down-force
CFD Analysis F1 Car
Technical Regulations Affecting Aerodynamic Features In F1
Weight of the car
Overall width
Overall height
Front bodywork height
CONCLUSION
Aerodynamics is now the most important item on the car which a team can actually change, because if you look at the tires, everyone has the same tires and the engine is homologated. So aerodynamics is the single biggest item we can change - the biggest performance item on the car.
Although they may seem restricted by tight regulations, these regulations only add more challenge to the game that engineers must play.
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