A centrifugal clutch has four shoes, each of mass 0·35 kg. When at rest, the radial clearance between the shoes and the clutch drum is 15 mm and the radius to the centre of gravity of the shoes is 225 mm. The shoes are held on retaining springs of stiffness 10 kN/m and the internal diameter of the clutch drum is 600 mm. The coefficient of friction between the drum and the shoes is 0·3. Determine: (a) The speed (in rev/min) at which the clutch starts to engage. For a rotational speed of 1200 rev/min: (b) The force each shoe exerts on the drum. (c) The torque transmitted. (d) The power transmitted.

A centrifugal clutch has four shoes, each of mass 0·35 kg. When at rest, the radial clearance between the shoes and the clutch drum is 15 mm and the radius to the centre of gravity of the shoes is 225 mm. The shoes are held on retaining springs of stiffness 10 kN/m and the internal diameter of the clutch drum is 600 mm. The coefficient of friction between the drum and the shoes is 0·3. Determine: (a) The speed (in rev/min) at which the clutch starts to engage. For a rotational speed of 1200 rev/min: (b) The force each shoe exerts on the drum. (c) The torque transmitted. (d) The power transmitted.

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.77P: The cone clutch transmits the torque C through a conical friction surface with cone angle . The...

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