[Subscribe to Daily Digest] |
 | [Main General Bulletin Board | BBFAQ |
Next by Date | Post Followup ]
Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
Re: Makes sense.... the circumference shouldn't change Posted by JimBlake [Email]  (#141)  [Profile/Gallery]
(more from JimBlake) on Sat, 9 Oct 2010 21:05:16
In Reply to: Makes sense.... the circumference shouldn't change, Noel, Fri, 8 Oct 2010 13:17:29 Members do not see ads below this line. - Help Keep This Site Online - Signup |
The circumference of the belts is probably what changes the least. The rubber has a much lower elastic modulus than the belts. And the tire tread blocks open & close from each other as it flexes at the road.
As an extreme example, think of tank tracks. As they go around the sprockets, they hinge open, so the "circumference" that doesn't change is defined by the hinges between links. Those hinges are some distance up from the ground.
We're splitting hairs, but it's kinda fun to think it through. The dynamics of tire motion under acceleration & braking loads gives more than 3% slip ratios, like BobS says.
, Sat, 9 Oct 2010 21:05:16 <-- Viewing This Message
, Sun, 10 Oct 2010 03:28:11, Thu, 7 Oct 2010 19:57:16, Sat, 9 Oct 2010 01:38:07, Fri, 8 Oct 2010 07:36:56, Sat, 9 Oct 2010 18:28:22
, Thu, 7 Oct 2010 05:42:38
, Fri, 8 Oct 2010 16:54:56
No Site Registration is Required to Post - Site Membership is optional (Member Features List), but helps to keep the site online
for all Saabers. If the site helps you, please consider helping the site by becoming a member.
 |
 |
 |
 |
 |
