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  • vehicle torque calculation

    Discussion in 'Industrial design' started by anoopsg2, Jul 24, 2015.

    1. anoopsg2

      anoopsg2 New Member

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      hi,
      i have 8000 lb machine it has 4 wheels (just like car), i want it to move on 2 ft/sec speed on cast iron wheels with steel track at flat surface. radius of every wheel in 5 inch. what will be the torque required to move this machine?? and what will be the torque on each wheel?? i want to put two motors on two drive wheels... and which type of motor is suitable in 3 phase motors
      please help...
      thanx in advance
       
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    3. mymachineinfo

      mymachineinfo Member

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      Torque = Thrust Force * Radius of wheel
      Thrust Force = Load (8000 Lb ) * gravity * coefficient friction of wheel
       
    4. CPPMable

      CPPMable Well-Known Member

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      Just to be clear as your question sounds like you are asking what torque would get you 2ft/s. Torque is a force not equated to speed. You will need to calculate what RPM you need to get 2ft/s based on your tire radius. Assuming you can handle this calc? A motor manufacture will then provide a RPM vs Torque curve and make sure this is in the range you need.

      To go with mymachineinfo comment. Make sure you understand and consider the difference between static vs kinetic friction. So your vehicle can start from a stop position do not want to have to give it a swift kick to get it going.
       

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