20. A thrust of 30 kN along the axis of a shaft is taken by a pivot bearingconsisting of the frustum of a cone.The outer and inner diameters are 200 mmand 100 mm and the semi-angle of the cone is 60°. The shaft speed is 200 rev/min0-02. Assuming that the intensity of pressure is uniform over thesurface of the bearing, find, from first principles (a) the magnitude of this pros-sure, in N/m²; (b) the power absorbed in friction. (U. Lond.)and(Ans.: 1.272 MN/m²; 1.13 kW)

Answered: Image /qna-images/answer/e200405e-b99d-422f-80ce-eb5af08743c5.jpg

KIN along the axis of a shaft is takon consisting of the frustum of a cone. The outer and inner diameters are 200 mm and 100 mm and the semi-angle of the cone is 60°. The shaft speed is 200 rev/min and μ = 0-02. Assuming that the intensity of pressure is uniform over the surface of the bearing, find, from first principles (a) the magnitude of this pres- sure, in N/m²; (b) the power absorbed in friction. (U. Lond.) (Ans.: 1.272 MN/m2; 1.13 kW)

KIN along the axis of a shaft is takon consisting of the frustum of a cone. The outer and inner diameters are 200 mm and 100 mm and the semi-angle of the cone is 60°. The shaft speed is 200 rev/min and μ = 0-02. Assuming that the intensity of pressure is uniform over the surface of the bearing, find, from first principles (a) the magnitude of this pres- sure, in N/m²; (b) the power absorbed in friction. (U. Lond.) (Ans.: 1.272 MN/m2; 1.13 kW)

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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