Q1: A single plate clutch, effective on both sides, is required to transmit 25 kWat 3000 r.p.m. Determine the outer and inner radii of frictional surface if thecoefficient of friction is 0.255, the ratio of radii is 1.25 and the maximum pressureis not to exceed 0.1 N/mm². Also, determine the axial thrust to be provided bysprings. Assume the theory of uniform wear.Q2: A conical friction clutch is used to transmit 90 kW at 1500 r.p.m. The semicone angle is 20° and the coefficient of friction is 0.2. If the mean diameter of thebearing surface is 375 mm and the intensity of normal pressure is not to exceed0.25 N/mm², find the dimensions of the conical bearing surface and the axial loadrequired.

Q1 Q2Given: P = 90 kW = 90 × 103 W N = 1500 r.p.m. or ω = 2 π× 1500/60 = 156rad/s α = 20 μ = 0.2…

Answered: Q1: A single plate clutch, effective on…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A multiple disc clutch has three discs on the driving shaft and two on the driven shaft, providing four pairs of contact surfaces. The outer diameter of the contact surfaces is 250 mm and the inner diameter is 150 mm. Determine the maximum axial intensity of pressure between the discs for transmitting 18.75 kW at 500 r.p.m. Assume uniform wear and coefficient of friction as 0.3.
Q) A single plate clutch has to transmit 75 kW at 3000 r.p.m. The spring exerts an axial pressure of 7.35 N/cm3. Determine the inner and outer diameters of the friction surfaces if the ratio of the two diameters is 1.5.
Determine the given question with correct solution not polagarise its urgent
A single-plate clutch has a friction disc with inner and outer radii of 20 mm and 40 mm, respectively. The friction lining in the disc is made in such a way that the coefficient of friction u varies radially as u= 0.01 r. where r is in mm. The clutch needs to transmit a friction torque of 18.85 kN. mm. As per uniform pressure theory, the pressure (in MPa) on the disc is
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Q1 Q5) 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/mm, load factor is 2 and the mean diameter to face width ratio is 6.
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Q. A multiplate clutch has three pairs of contact surfaces. The outer and inner radii of the contact surfaces are 100 mm and 50 mm respectively. The maximum axial spring force is limited to 1 kN. If the coefficients of friction is 0.35 and assuming uniform wear, find the power transmitted by the clutch at 1500 r.p.m.

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