Best Form Of Six Wheel Drive?

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Best Form Of Six Wheel Drive?

View Poll Results: What Six Wheel Drive Is Best?
Traction wheels at the center and omnis at the front and rear	12	6.82%
Wheels at the center wider apart than the others, and an Octagon base	8	4.55%
Six traction wheels; Brute force turning	17	9.66%
Drive with lowered center wheel	129	73.30%
Other, please specify	10	5.68%
Voters: 176. You may not vote on this poll

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#32

26-03-2007, 15:19

MrForbes

Registered User

AKA: Jim

FRC #1726 (N.E.R.D.S.)

Team Role: Mentor

Join Date: Feb 2006

Rookie Year: 2006

Location: Sierra Vista AZ

Posts: 6,027

Re: Best Form Of Six Wheel Drive?

there might be an error in your formula...the factor of 0.5 for weight distribution over the rear wheels ignores weight transfer when pushing. If you put a scale up against a wall, and have the robot push against that, you might discover the real number to be higher than you thought.

This weight transfer thing plays an important role in drag racing, cars that are set up right have the front wheels just skimming the track at launch, all the vehicle weight is on the rear wheels.

In robot pushing matches, a similar thing happens, but for a different reason. Draw a free body diagram of the robot, with the pushing point centered on the bumper zone, see what happens.

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Jim

Buena High School N.E.R.D.S. FRC 1726
The Typewriter Repairmen Underwater ROV

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