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leaning body chassis

leaning body chassis

leaning body chassis

My name is Robert Leeman, I'm based in Germany working for an independant design development company just outside Stuttgart. Currently I am working on a design project that involves designing the next Renault Alpine 110.

It is my intension to design a fully leaning body vehicle with more scope than recent vehicle developments such as the Mercedes F400 or Alfa Centauri. With independant F/R axles connected under the monocoque, somewhat like a skate-board's construction, the brief requires me to make this more than just an interesting, fun but useless concept for wealthy drivers, is is intended for motorsport!

The basic package is a mid-engined 4WD system whos upper monocoque should be the only section to move independantly of the axels. the front and rear axles have a seperate under body monocoque spanning between the wheels to accomodate the suspension, transmission and other ansillories. In this way the two act together to create a ridgid structure.

The reason for this particular vehicle concept is two-fold, primarily the upper body's surface should create unique aerodynamic characteristics to allow the vehicle greater dynamic downforce through any given corner. In a similar way to F1 stock-cars with their specialised "Left-turn" aerodynamics.

Secondly this is an attempt to develop a new B or even group S rally class. The vehicle and it's construction has been decided upon to be a fully fleged attempt to raise the profile of the WRC to that of F1.

If anyone is able to help by providing some answers or even advice on this project I would be very greatful. My technical support on this project is limited at the moment and I need some answers quickly. I require some information in the folowing areas, diagrams ant tips on implementation would be great:

-Aerodynamics through a corner, any principles to improve the event of non-liniar laminar flow.

-Examples of existing leaning body chassis construction, or any concept developments of swing body monocoque's etc...

-Examples of hydraulic systems that could prove to have enough power and responsivness to deal with the imput required.

However, even if you don't have information exactly matching my requirements but have something you think may be relivent, and if you have the time, please contact me at robert_leeman_79@yahoo.co.uk.

I look forward to hearing your responces and would like to thank you for any time you may spend on this matter.

Robert Leeman.

RE: leaning body chassis

Check out Aurora Vehicle's solar car for an example of a rigid tricycle chassis with a body suspended from that.

I did work on a supercar and a showcar for one manufacturer that was basically a rolling spine chassis/powertrain, with the body suspended from that. Careful examination of show car reports from the late eighties and early nineties might find it - we built three, one was a runner the other two were show cars.

It is an attractive idea although of course it is illegal under F1 rules, I don't know about rally cars.


Greg Locock

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