Red Bull RB7

[tisian 1]

Devo dire che trovo esteticamente piacevoli le monoposto nuove senza quelle orribili pinne a mo di cartelloni pubblicitari.

 

 

Lateralmente SI!! le trovo anch'io gradevoli....

...ora, se le allargassero di 20 centrimetri (carreggiate) e facessero degli alettoni dimensionalmente pi? equilibrati, sarebbero belle da vedere sotto ogni punto di vista, IMHO!!! :zizi:

[The King of Spa 637]

Red Bull RB7 ? Sidepods and Cooling

 

 

When the Red Bull RB7 was rolled out, it was clear the car was a neat development of the RB6, but was not an innovative car. As with well developed cars like this, its details are well thought through, a particular case is the sidepod design. If you look at the RB7s sidepods, from the radiators back they appear to slope away to nothing. This leaves the distinctive flat floor and open area ahead of the rear wheels. This creates an obvious aero gain, but how is cooling achieved with such a tight design?

 

 

Firstly the sidepod forms the main blockage to the rear wing and diffuser. We?ve seen several approaches this year to manage the airflow around the sidepods to the rear of the car. In each case the team are trying to get the best and most direct airflow to the top of the diffuser and beam wing. As the better flow these devices receive, the more downforce they produce and the less drag is required from a larger rear wing.

 

Since the 2009 aero rules sidepods are extremely limited in the openings they are allowed, so most of the flow has to exit between the rear wheels. Normally sidepods send the heated air from the radiators back through the tapered rear (known as the coke bottle, due to its shape). In a simple sidepod this means the coke bottle ends with an opening and the hot air passes out and over the diffuser. However this makes the tail of the coke bottle unduly wide, which creates a blockage between the rear wheels and blocks flow over the diffuser. Red Bull discovered with the RB5 that the radiator airflow can pass up towards the centre of the car and exit above the gearbox in a bulged opening. This keeps the tail of the coke bottle nice and narrow.

 

 

With the RB7 Red Bull have taken this a step further, there is no appreciable exits in the tail of the coke bottle, so nearly all the radiator airflow ends up passing through the bulged outlet. This means the coke bottle is the slimmest and simplest of all the cars on the grid. Clearly the huge floor area and exposed beam wing show how easily airflow can reach the rear of the car. The concession Red Bull has to make for this benefit is the increased blockage in front of the rear wing. But as they are aiming for downforce from the more efficient diffuser and beam wing, the rear wings effectiveness is not such a concern. Other teams have similar low swept coke bottle shapes, but each of them still exploits some cooling exit at the back of the sidepod. Given enough testing a fully enclosed sidepod with the central bulged outlet could be copied.

[gio66 6]

Schieramento a Melbourne

 

 

 

[lucagt2 31]

certo quanto carbonio

mammamia

[Severo64 1]

Anche la Ferrari ha una soluzione simile anche se meno vistosa, infatti se si guarda il cupolone da dietro si notano 2 feritoie longitudinali separate da una paratia, dovrebbero avere la stessa funzione di evacuazione dell'aria dai radiatori.

 

Ciao

[The King of Spa 637]

Red Bull ? KERS installation detailed

 

 

Having run KERS for Friday only in Melbourne, RBR will probably run the KERS system for the full weekend in Sepang. As RBR were not seen to use KERS on their qualifying laps, although they were unknown to be equipped with Renaults KERS raised rumours of a start only KERS. While a start only KERS is technically legal and has some technical advantages, it?s not thought such a system is planned for any team.

From images seen this in the team?s garage this morning we can see the KERS set up quite clearly. The actual set up is quite different to the image provided by Red bull in their Launch press pack. Which shows a far more conventional layout?

 

KERS control unit - Via Autosport.com

 

On the right hand side of the car, we can see a silver box with FIA anti-tamper seals; this is the KERS control unit (KCU). This controls the power exchange between the motor generator and the battery pack. The thick red cables carry the current in between these other devices. Running very hot from the current passing through it, the KCU will have a cool air feed from the sidepod ducting. Although not certain, the small radiator at the bottom of the other coolers is probably to cool the battery pack.

 

Possibly the KERS water cooling radiator - via Autosport.com

 

From the other side we can see the Battery pack, unusually this is mounted to the side of the gearbox. It is the rounded carbon fibre item, with the yellow warning sticker.

 

KERS Battery Pack - via Autosport.com

 

The other three KERS suppliers (Mercedes, Ferrari and Williams) all place this item beneath the fuel tank for better weight distribution and crash safety. Although McLaren did place theirs low down in the front of the sidepod in 2009. With the more rear biased mandatory weight distribution rule, this more rearwards location is not a handicap. It frees up fuel capacity and sits inside a dead area of space within the sidepod. You can see the same thick red cable emerging from the battery pack. Inside the carbon case will be an array of small lithium-Ion cells (Li-ion). These will run at high temperatures as the cells charge and discharge, as explained they will be cooled a dedicated water radiator and pump.

 

More on KERS: http://scarbsf1.wordpress.com/2010/10/20/kers-anatomy/

[The King of Spa 637]

Red Bull ? Pull rod suspension detailed

 

Via Motorsport Magazin

 

From these images we can finally see some detail of the Red bull gearbox. Firstly the construction is carbon Fibre, which the team switched to mid way through 2009, in order to save weight over the old aluminium case.

 

Top wishbone location - via Motorsport Magazin

 

Then we can note the geometry of the wishbones, Red Bull followed high mounted wishbones since the RB5, the rear top wishbone (RTWB) being very high and near horizontal, being mounted to the ridge along to the top of the gearbox.

 

Differential - via Motorsport Magazin

 

Equally Red Bull have gone for a low differential, but the total effect is a very tall and bulky gearbox, albeit one that fits into the natural space created as the car tapers to the rear. But compared to Williams gearbox its clear to see where better airflow can be created at the tail of the car.

 

Pull Rod - via Motorsport Magazin

 

It?s rare to find pictures of the Red bull pull rod suspension. The low mounted mechanical parts normally covered by body panels and heat shielding. But here we can quite clearly see the pull rod leading down to the rocker. The pull rod is split to allow easy ride height changes by adding shims into the split and also allows the pull rod to be permanently mounted to the bearings on the rocker. When the rear wishbones are removed this lower part of the pullrod will remain with the gearbox. In turn the rocker operates the compliant elements of the rear suspension, the springs, dampers and heave elements.

 

Damper - Via Motorsport Magazin

 

The damper is clearly visible being mounted alongside the flanks of the gearbox case. The red anodized body and labels making it easy to spot. Note the rocker has a longer lever to operate the damper in comparison to the lever that the pull rod mounts to. This is to increase damper travel compared to wheel travel for greater wheel control.

 

rocker or Bell Crank - via Motorsport Magazin

 

Its not clear if the rocker works on a torsion bar t provide the rear springing, its believed Red Bull went away from torsion bars and individual wheel springs in 2009. Instead using the heave spring allied to the antiroll bar for a springless rear set up (read more at http://scarbsf1.wordpress.com/2010/12/03/spring-less-rear-suspension-a-quiet-revolution/). If a torsion bar is used it will need to run near vertically along the axis of the rocker.

 

Rocker to operate the Heave spring - via Motosport magazin

 

Not entirely visible is the heave control set up, this will consist of a Heave spring, damper and\or bump rubbers, plus an inerter (not strictly for heave control but mounted in the same location). These run across the front of the gearbox, being mounted just above the clutch. We can see the splined end of the anti roll bar; the bar will have levers reaching forward to drop links that will provide the rear roll control.

 

Antiroll Bar location - via Motorsport Magazin

 

More on Pull Rods http://scarbsf1.wordpress.com/2010/10/10/red-bull-pull-rod-suspension-what-is-looks-like-how-it-benefits-aerodynamics/

[The-Flying-Finn 4631]

Non ho visto neanche una foto della prima gara. Come sono andate a livello di affidabilit? le Red Bull?

[The King of Spa 637]

tutti bene in gara, tranne il Renault di Kovalainen.

[The-Flying-Finn 4631]

Quello non conta

 

Grazie

[gio66 6]

NEWEY ON KERS: "It?s definitely something we need to focus on because we know we lose time on the track when we have to turn it off."

[Ruberekus 12261]

il che vuol dire che quando risolveranno il problema saranno volatili per diabetici

[gio66 6]

ma di quelli grossi grossi

[Pegasus83 0]

Se con il Kers Off sono riusciti comunque a mantenere margine da chi seguiva, siamo di fronte a qualcosa di prodigioso.

[The King of Spa 637]

Riporto un passaggio di un certo Nelson dal blog di Turrini sui citati "assetti picchiati" dall'ing Bruno e sul muso che flette.

 

Personalmente ritengo che non sar? semplicissimo per tutti gli altri imitare in poco tempo gli assetti della RedBull perch?, flessibilit? del muso a parte (che comunque pi? o meno tutti hanno, e da qui il fatto che nessuno osa fare un reclamo ufficiale alla FIA) ? da ristudiare completamente in galleria del vento il modo diversissimo con cui probabilmente ?gira l?aria? sopra e sotto la vettura

[Pegasus83 0]

Essendo cos? picchiato verso l'anteriore, il fondo sulla sua parte superiore potrebbe diventare una specie di secondo alettone dopo una certa velocit

[The King of Spa 637]

il fondo simulerebbe il telaio della 80

Modificato 12 Aprile, 2011 da The King of Spa

[ema00 859]

ma cos'? di preciso st'assetto picchiato?

[The King of Spa 637]

Alla scoperta dei segreti tecnici della Red Bull

[gio66 6]

ma cos'? di preciso st'assetto picchiato?

Il contrario dell'assetto cabrato.