"new" roll/sway bar concept

Morning all,
referring to magazine Race car Engineering V9n1 Jan/Feb 1999 page 76 would anyone care to make comment or does anyone know if this layout has gone anywere, I cannot see any advantages and I do not understand the statement "fully floating spring damper unit". I was approached recently about this concept and recall reading it albeit 15 years ago, have reread but it still does not make sense to me apart from the fact that I would not like to do the "calcs" to determine the value of the
'spring/resistance" to bending, don,t know what to call it! Comments etc greatly appreciated.
Golfpin

 

[BrianPetersen]

That bar is gonna break at the bend. It's only a matter of time.

A regular antiroll bar distributes the deflection across its entire length. That one concentrates it at the bend.

I don't see why one would do this instead of doing it the normal, proven way.

In exotic applications (F1), sure, you could put a coil-over damper between the left and right sides and have both spring-rate and damping-rate applied to roll. That's assuming you want the vehicle to have greater roll stiffness than vertical stiffness. I seem to recall those cars having very little ground clearance in the interest of aerodynamics, and that would suggest if anything, having it the other way around ...

 

[GregLocock]

Here's the typical f1 3rd spring/damper arrangement which gives you full vontrol over roll as a dof, that is the 3rd spring can be replaced by any combination of travel limiters, springs, dampers and inerters.



Cheers

Greg Locock


New here? Try reading these, they might help FAQ731-376

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[GregLocock]

If that site doesn't allow deep linking then

http://greglocock.webs.com

and scroll down. There's an animation as well.



Cheers

Greg Locock


New here? Try reading these, they might help FAQ731-376

http://eng-tips.com/market.cfm?

 

[golfpin]

Been off line for nearly a month trying to get a PC repaired !!!! need I say more.
Greg thanks for that great schematic [am still trying to fathom out how it works] it is very similar to the layout that I saw on a Pilbeam LM car that was out here a while back could not get close enough to try and see how it worked. Had a brief word with Mike Pilbeam [he was incredibly accomodating] he tried to explain the concept but he was very busy and the noise!!!!!!!!!!!
Golfpin