Thread: Frictional coefficant of wheels on the carpet
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Unread 04-12-2008, 00:58
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Re: Frictional coefficant of wheels on the carpet
If you are looking for a rough number for the coefficient of friction, Team 494/70 did some experiments and found it to be around 1.3 (for conveyor belt "brouwn rough" on sample carpet). I believe the KOP wheel is around 0.9. Web is supposedly assymetirc with 1.1-1.2 in one direction, and 1 in the other.

If you are interested in making some scholarship money, do the experiments and write up your results. Also check out the surface area relationship. Since this grip is like tire grip, part of it is actual coefficient on friction and part is mechancial grip from fibers and tread interlocking.

On a side note :Too much Info Warning: While tire grip can be estimated by a single coefficient of friction, actual grip/weight depends on temperature, load, %slip or slip angle, and tire age.......Most of these are usually small factors, but ask anyone who has driven 3 season tires below 32F, they can be huge factors.