Calculating Spring Force for a Multi Plate Clutch

AI Thread Summary
To calculate the spring force required for a multi-plate clutch with four frictional surfaces, the internal diameter is 120mm and the external diameter is 200mm, with a coefficient of friction of 0.3. The goal is to transmit 20KW of power at 1440 RPM under uniform pressure conditions. Initial calculations suggest a spring force of 1381.597N, while another method indicates a required force of 1841N after converting power to torque. The discrepancy in results highlights the importance of verifying calculations and assumptions in clutch design. Accurate calculations are crucial for ensuring effective clutch performance.
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A multi plate clutch has 4 frictional surfaces, imternal diameter 120mm and external diameter 200mm. The coefficent of friction is 0.3

What spring force will be required to transmit 20KW of power at 1440 RPM if the clutch is under uniform pressure conditions?
 
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Using constant wear therory R1 + R2 / 2

I have managed to reach an answer of 1381.597N or 1.381KN (Can anyone confirm please?)

Thanks,
 

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