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How much is the turk that a usual person enter over the bicycle pedal ? ( the range )

  1. Mar 16, 2010 #1
    how much is the turk that a usual person enter over the bicycle pedal ? ( the range )
    i want to know . is it enough to ride a bicycle through drastic uphill bye foot power? or use some booster to drive better . i want to design a hydraulic transmition for bicycle . do i have to use pressure booster to increase the force on rear wheel or the 1:1 transmited turk is enough ?
     
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  3. Mar 16, 2010 #2

    Danger

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    Re: how much is the turk that a usual person enter over the bicycle pedal ? ( the ran

    Welcome to PF, Ahad. I'm afraid that your question is a little vague. The torque that you provide depends upon both your weight and the length of the pedals (lever arms). The gearing system determines the torque/speed ratio. Generally speaking, it works the same way as in a car. You start in low gear for acceleration, and then gradually shift up until you reach your desired speed.
     
  4. Mar 16, 2010 #3

    minger

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    Re: how much is the turk that a usual person enter over the bicycle pedal ? ( the ran

    I think that maximum and typical energy outputs for humans are relatively standard. Perhaps you could take the energy and back calculate the torque based on the angular velocity?
     
  5. Mar 16, 2010 #4
    Re: how much is the turk that a usual person enter over the bicycle pedal ? ( the ran

    in my opinion, its going to be real hard to beat the simplicity of the conventional bike gear. With a hydrostatic system, you will have more mass on the bike, from the system to generate, transfer, and possibly cool the fluid, along with the mass of the fluid. plus, I suspect, slippage will further reduce the efficiency. Interesting idea, though

    dr
     
  6. Mar 16, 2010 #5

    Danger

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    Re: how much is the turk that a usual person enter over the bicycle pedal ? ( the ran

    Agreed. It would make a cool conversation piece, but the space and weight that such a system would require would be better occupied by a motor.
     
  7. Mar 17, 2010 #6

    Mech_Engineer

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    Re: how much is the turk that a usual person enter over the bicycle pedal ? ( the ran

    The real question is how much torque can a turk generate?

    http://weslowery.files.wordpress.com/2009/07/turk-745163.jpg
     
    Last edited by a moderator: Apr 24, 2017
  8. Mar 17, 2010 #7
    Re: how much is the turk that a usual person enter over the bicycle pedal ? ( the ran

    An experienced bicyclist can produce ~100 watts continuously at ~ 90 RPM.


    Bob S
     
  9. Mar 18, 2010 #8

    sophiecentaur

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    Re: how much is the turk that a usual person enter over the bicycle pedal ? ( the ran

    "The real question is how much torque can a turk generate?"
    You can torque the torque but can you worque the worque?
     
  10. Mar 18, 2010 #9
    Re: how much is the turk that a usual person enter over the bicycle pedal ? ( the ran

    I don't think you know what you're torquing about

    dr
     
  11. Mar 18, 2010 #10

    Danger

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    Re: how much is the turk that a usual person enter over the bicycle pedal ? ( the ran

    I see that this thread is getting twisted...
     
  12. Mar 18, 2010 #11

    stewartcs

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    Re: how much is the turk that a usual person enter over the bicycle pedal ? ( the ran

    Hey wait a moment! :rolleyes:
     
  13. Mar 19, 2010 #12
    Re: how much is the turk that a usual person enter over the bicycle pedal ? ( the ran

    the bad jokes keep going round and round

    its almost "tau" much

    dr
     
  14. Mar 19, 2010 #13
    Re: how much is the turk that a usual person enter over the bicycle pedal ? ( the ran

    I think with a mountain bike you can produce way more torque than you need. I tried going up a STEEP hill once, and the limiting factor was the front wheel coming off the ground, not the lack of torque...
     
  15. Mar 19, 2010 #14

    sophiecentaur

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    Re: how much is the turk that a usual person enter over the bicycle pedal ? ( the ran

    That's a wheely wheely serious problem.
     
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