Shigley's Mechanical Engineering Design (McGraw-Hill Series in Mechanical Engineering)
10th Edition
ISBN: 9780073398204
Author: Richard G Budynas, Keith J Nisbett
Publisher: McGraw-Hill Education
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Chapter 16, Problem 10P
To determine
The maximum allowable actuation force.
The braking torque.
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Q: A single plate clutch, effective on both sides, is required to transmit 20 kW at 2500 rpm. Determine the outer and inner diameters of frictional surface if the coefficient of friction is 0.26 and check their with wear rating. The maximum pressure is not to exceed 0.002 N/mm?. Also, determine the axial thrust to be provided by springs. Clutch plate with friction lining ‘Body Bl X Pressure plate Hub Thrust Springs Flywheel Crank shaft Bl Driven shaft riving shaft 4 Release lever (withdrawl finger) O Knife edge
Determine the principal dimensions of a cone clutch faced with lather to transmit 40 kW at 800 r.p.m. from an electric motor to an air compressor. Sketch a sectional front view of the clutch and provide the main dimensions. Assume that the semi-angle of the cone is 10°, the coefficient of friction is 0.3, mean diameter of cone is (7-10)d, where d is the diameter of the shaft, allowable normal pressure for lather and cast iron is 0.1 to 0.2 N/mm, shear stress 100 N/mm², load factor is 2 and the mean diameter to face width ratio is 6.
A conical clutch has an included angle of 120°, a coefficient of friction of 0.4, and outer and inner diameters of 85mm and 18mm respectively.
Using both the uniform wear theory and the uniform pressure theory, calculate the force required to press the two halves together if it is to transmit 300W at 750rev/min.
The uniform wear theory and the uniform pressure theory deliver different values for torque in the same system. Which theory would be preferred in practice for use in calculations involving a friction clutch? Give reasons for your choice.
Chapter 16 Solutions
Shigley's Mechanical Engineering Design (McGraw-Hill Series in Mechanical Engineering)
Ch. 16 - The figure shows an internal rim-type brake having...Ch. 16 - For the brake in Prob. 16-1, consider the pin and...Ch. 16 - In the Figure for Prob. 16-1, the inside rim...Ch. 16 - The figure shows a 400-mm-diameter brake drum with...Ch. 16 - The block-type hand brake shown in the figure has...Ch. 16 - Suppose the standard deviation of the coefficient...Ch. 16 - The brake shown in the figure has a coefficient of...Ch. 16 - Prob. 8PCh. 16 - Prob. 9PCh. 16 - Prob. 10P
Ch. 16 - The maximum band interface pressure on the brake...Ch. 16 - The drum for the band brake in Prob. 1611 is 12 in...Ch. 16 - The brake shown in the figure has a coefficient of...Ch. 16 - The figure depicts a band brake whose drum rotates...Ch. 16 - The figure shows a band brake designed to prevent...Ch. 16 - A plate clutch has a single pair of mating...Ch. 16 - A hydraulically operated multidisk plate clutch...Ch. 16 - Prob. 18PCh. 16 - A cone clutch has D = 12 in, d = 11 in, a cone...Ch. 16 - Prob. 20PCh. 16 - A two-jaw clutch has the dimensions shown in the...Ch. 16 - Prob. 22PCh. 16 - Prob. 23PCh. 16 - Prob. 24PCh. 16 - Using the data of Table 16-6, find the mean output...Ch. 16 - When a motor armature inertia, a pinion inertia,...Ch. 16 - For the conditions of Prob. 1627, make a plot of...Ch. 16 - Prob. 29PCh. 16 - Prob. 30PCh. 16 - Prob. 31P
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