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A centrifugal clutch has four shoes which slide radially in a spider keyed to the driving shaft and make contact with the internal cylindrical surface of a rim keyed to the driven shaft. When the clutch is at rest each shoe is pulled against a stop by a spring so as to leave a radial clearance of 5mm between the shoe and the rim. The pull exerted by the spring is then 500N. The mass centre of the shoe is 160 mm from the axis of the clutch. If the internal diameter of the rim is 400 mm, the mass of the each shoe is 8kg, the stiffness of each spring is 50N/mm and the coefficient of friction between the shoe and the rim is 0.3; find the power transmitted by the clutch at 500 r.p.m.

A centrifugal clutch has four shoes which slide radially in a spider keyed to the driving shaft and make contact with the internal cylindrical surface of a rim keyed to the driven shaft. When the clutch is at rest each shoe is pulled against a stop by a spring so as to leave a radial clearance of 5mm between the shoe and the rim. The pull exerted by the spring is then 500N. The mass centre of the shoe is 160 mm from the axis of the clutch. If the internal diameter of the rim is 400 mm, the mass of the each shoe is 8kg, the stiffness of each spring is 50N/mm and the coefficient of friction between the shoe and the rim is 0.3; find the power transmitted by the clutch at 500 r.p.m.

Elements Of Electromagnetics
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 centrifugal clutch has four shoes which slide radially in a spider keyed to the driving shaft and make contact with the internal cylindrical surface of a rim keyed to the driven shaft. When the clutch is at rest each shoe is pulled against a stop by a spring so as to leave a radial clearance of 5mm between the shoe and the rim. The pull exerted by the spring is then 500N. The mass centre of the shoe is 160 mm from the axis of the clutch. If the internal diameter of the rim is 400 mm, the mass of the each shoe is 8kg, the stiffness of each spring is 50N/mm and the coefficient of friction between the shoe and the rim is 0.3; find the power transmitted by the clutch at 500 r.p.m.
Transcribed Image Text:A centrifugal clutch has four shoes which slide radially in a spider keyed to the driving shaft and make contact with the internal cylindrical surface of a rim keyed to the driven shaft. When the clutch is at rest each shoe is pulled against a stop by a spring so as to leave a radial clearance of 5mm between the shoe and the rim. The pull exerted by the spring is then 500N. The mass centre of the shoe is 160 mm from the axis of the clutch. If the internal diameter of the rim is 400 mm, the mass of the each shoe is 8kg, the stiffness of each spring is 50N/mm and the coefficient of friction between the shoe and the rim is 0.3; find the power transmitted by the clutch at 500 r.p.m.
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