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Mathematical model for slipping clutch

Mathematical model for slipping clutch

Mathematical model for slipping clutch

(OP)
I am looking for a reference to, or the actual equation(s) that will allow me to model the power transmission efficiency through a centrifugal clutch during the time it begins slipping until full lock up.  

Any pointers are appreciated.  

RE: Mathematical model for slipping clutch

If the slip = 100%, efficiency = 0
If the slip = 0, Efficiency = 100%
efficiency n = power out / power in
If drive speed is constant, assume torque is constant,
so n=speed out/speed in

However I have watched quite a few centrifuges starting with a centrifugal clutch, and the current drawn during acceleration often has a peak just before full speed, probably as the clutch locks up and transmits full motor torque.

Hope this helps

Jeff

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