Why test tracks are banked parabolic why not elliptical or circular or hyperbolic? what are advantages of parabolic curve over another curves?
Thanx Mike..i agree with ur point as varying angle with the curve will help to counteract the centrifugal forces which vary with changing speeds.. but why specifically parabola why not ellipse or hyperbola, what will be in case of ellipse or hyperbola.. i need some geometrical reason to support why we choose this curve.The key word here is TEST...automobile manufactures must test the vehicle over a number of different operating conditions. One symetrical oval would not tell much about the handling of the vehicle. Many different turns with differing radius and banking, short straights long straights all add to real world operating conditions. Just about all the test tracks have road course as well, and changing elevation to evaluate brakes on differing grade or slopes..
thank you mike. yeah i might be wrong !! and always get confuse between two but can you refer some book or reading material which will give m a more broad idea about same and i am very specifically talking about banking.. it would be great if u provide any study material for designing track if u know one.the curves are not symmetrical and have various diminishing radius to replicate the off ramp of many highway exits. Nor are they constant. And you are incorrect thinking centrifugal..the proper term is centripetal force