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

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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 ?
 

Answers and Replies

  • #2
Danger
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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.
 
  • #3
minger
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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?
 
  • #4
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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
 
  • #5
Danger
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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.
 
  • #6
Mech_Engineer
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The real question is how much torque can a turk generate?

http://weslowery.files.wordpress.com/2009/07/turk-745163.jpg
 
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  • #7
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An experienced bicyclist can produce ~100 watts continuously at ~ 90 RPM.


Bob S
 
  • #8
sophiecentaur
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"The real question is how much torque can a turk generate?"
You can torque the torque but can you worque the worque?
 
  • #9
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I don't think you know what you're torquing about

dr
 
  • #10
Danger
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I see that this thread is getting twisted...
 
  • #11
stewartcs
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I see that this thread is getting twisted...
Hey wait a moment! :rolleyes:
 
  • #12
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the bad jokes keep going round and round

its almost "tau" much

dr
 
  • #13
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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...
 
  • #14
sophiecentaur
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That's a wheely wheely serious problem.
 

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