Calspan's Flattrac tire testing machine uses airbearing to support the belt which runs between the 2 drums(imagine a giant belt sander). It supports up to 20000lb I believe and is capable for something like 250mph....Jersey Tom wrote:Air bearings.. I've only seen those used on very high speed, high accuracy machine tool spindles. Don't know how well that'd work on a slow-speed wheel, especially cantilevered!
C'mon, how could you expect me to answer that? OK, let's reinvent the wheel, then. I will play "devil's" advocate, because the wheel is like 3,000 years old and it is undefeated. You could say that modern wheels have only 100 years, but they certainly have advantage.tf1 wrote:what advantage(s) do you see from going to a spherical wheel?
There might not be slip angle, but you'll just replace it with slip ratio. One or the other has to exist for a car to go anywhere, spherical wheels or not. That's my understanding anyway.* If, actually there is no need for an slip angle to exist for the car to displace laterally or even rotate, you do not need to create friction between the tire and the road to take a curve: essentially you could do all the time what rally pilots do when they slide, pushing the car with the engine in the desired direction. Think of an office chair with spherical wheels.
http://www.calspan.com/tire.htmCiro Pabón wrote:Thanks, RacingManiac, excellent reference. I do not know if this is the correct link.
No, I find very difficult to be a fan of a firm. They have no soul... I admire the work of the people.pyry wrote:ciro, offtopic, but do you happen to be an audi fan?
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