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Re: Contact Area and its Relation to Friction?
This isn't exactly a mathematical answer, but a quick search on google gives this link:
http://www.physlink.com/Education/As...TOKEN=72229625
Remember that most physics books deal in an ideal world where most things are point masses and all surfaces are completely uniform and flat.
Consider too that since Force=Pressure*Area, that as area goes up, pressure can go down resulting in tires that can be made of softer materials or in the case of pnuematic tires, thinner walls because they need to contain lower air pressure.
(but I'm a Computer Engineer not a Mechanical one, and could be completely wrong too)
__________________
George Marchant - Lockheed Martin Engineer & General Nut Case
FIRST Credentials: Team 87 Mentor | Former Director FIRST Vex Challenge
NJ FIRST Planning Committee Member & NJ FVC Committee Member
Philadelphia Alliance Regional Corporate Advisory Board Member |
FRC and FTC volunteer at too many places to list (NJ, VA, DE, PA, NY, Championship)|
"Hi my name is George and I'm a FIRST-aholic. I've been a FIRST-aholic since 2000..."
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Innovating for the sake of innovating, reinventing the wheel is probably the second biggest pitfall you can fall into when designing an FRC robot, if the wheel is already a very optimized, good solution. - Chris is me [more] 
31-10-2007, 07:37
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