hw14.Fall.2010x

hw14.Fall.2010x - inner diameter of 4.0 inches. The...

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ME 452: Machine Design II Homework Set 14 Problem 1. A plate clutch has a single pair of mating friction surfaces, 300 mm outside diameter, and 225 mm inside diameter. The mean value of the coefficient of friction is 0.25, and the actuating force is 5,000 N. (a) Calculate the maximum pressure and the torque capacity using the uniform-wear model. (b) Calculate the maximum pressure and the torque capacity using the uniform-pressure model. Problem 2. A hydraulically operated multidisc plate clutch has a disk outer diameter of 6.5 inches and an
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Unformatted text preview: inner diameter of 4.0 inches. The coefficient of friction is 0.24, and the limiting pressure is 120 psi. There are six planes of sliding present (6 friction pairs). (a) Using the uniform wear model, estimate the axial force, F, and the total torque capacity of the clutch, T. (b) Let the inner diameter of the friction pairs, d, be a variable. Calculate the torque capacity of the clutch by varying d between 0 and 6.5 inches. Plot the results. (c) Discuss the results....
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