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Using different size wheel in ATV

  1. Jun 21, 2014 #1
    Can we use different size wheels in an ATV from stability point of view as they have different masses
     
  2. jcsd
  3. Jun 21, 2014 #2

    Simon Bridge

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    Welcome to PF;
    ATV means All Terrain Vehicle to me. Just checking.
    Even so, there are a wide variety. Presumably we can rule out hovercraft ;)
    Maybe tracked ATVs ... still leaves a great many with just wheels.
    Do you mean things like the quad-bikes?

    The stability depends on the location of the center-of-mass in relation to the wheelbase.
    Larger wheels can raise the com - lowering stability. Imagine an extreme case - if you used truck wheels say?
    You would want to also widen the wheelbase and/or add some ballast to improve stability.
     
  4. Jun 21, 2014 #3
    But if we use different size wheel by chance then it also cause different angular acceleration of wheel that impact too during stablity
     
  5. Jun 21, 2014 #4

    Simon Bridge

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  6. Jun 24, 2014 #5
    Because moment of inertia of the wheels are different as they have different masses
     
  7. Jun 25, 2014 #6

    Simon Bridge

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    How does the moment of inertia affect stability?
     
  8. Jun 26, 2014 #7
    It depends on what you want to do with the vehicle and what type of surface it will be running on. A racecar, say NASCAR for instance, may have 4 tires that are four different sizes and they do it for stability in a turn at 250 + KPH.

    Then again the tires don't last long.
     
  9. Jun 26, 2014 #8
    Likewise if I choose a rough traine at max 60kmpl then what you suggest to choose
     
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