View Single Post
  #144   Spotlight this post!  
Unread 06-01-2009, 12:00
Enigma's puzzle's Avatar
Enigma's puzzle Enigma's puzzle is offline
Strategery
AKA: Matt Brechting
FRC #2075 (Enigma)
Team Role: College Student
 
Join Date: Jan 2008
Rookie Year: 2006
Location: Sparta MI
Posts: 261
Enigma's puzzle is a splendid one to beholdEnigma's puzzle is a splendid one to beholdEnigma's puzzle is a splendid one to beholdEnigma's puzzle is a splendid one to beholdEnigma's puzzle is a splendid one to beholdEnigma's puzzle is a splendid one to beholdEnigma's puzzle is a splendid one to behold
Re: How can we drive on this new floor?

Your Normal Force is a set number, however much your robot mass. That is divided by the surface area that is touching the ground "Theoretically" (It actually depends on Weight Distribution too). The Mass that is supported by each wheel can actually be measured by load cells (And then divide by the surface touching the surface area making contact with the ground to find pounds per square inch.)

Adding or subtracting wheels (if all are powered) doesn't actually make the difference in total, It changes the pounds per square inch of each wheel but not the traction because your total mass is still the same and the friction is still the same.


However if all wheels are not powered then you lose traction because whenever you try to drive not all of your mass is being used to effect friction.

SO more wheels doesn't really help except for the stability of the robots. you won't gain more traction from more wheels.

The hieght of the trailer (the posts around the outside) goes linearly from 42 to 34 inches, I am not sure if that is from the floor or the base of the trailer.
Reply With Quote