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Old 04-13-2009, 03:36 PM   #19 (permalink)
Ernie Rogers
Ernie Rogers
Join Date: Feb 2008
Location: Pleasant Grove, Utah
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Measure Crr by bouncing the tire?

Originally Posted by bwilson4web View Post
Can this be used for non-destruct measurement of relative tire rolling resistance?

Bob Wilson
Wow, Bob, that's a fantastic idea! I can see it! You put the tire on a loose wheel, pump it up to pressure, then measure how high it bounces when you drop in on a smooth concrete surface! Or, see how the bounce changes with the kind of pavement. Lots of possibilities here.

Someone should sit down and work out the math, to see how you convert from bounce to Crr.

I am tied in with the local science fair guy at the high school. I will pass the word. This would be a terrific science fair project. But, don't let me hold back anybody else that wants to experiment.

Ernie Rogers
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