A belt drive consists of two V-belts in parallel, on grooved pulleys of the same size. The angle of the groove is 30°. The cross-sectional area of each belt is 750 mm2 and u= 0.12. The density of the belt material is 1.2 Mg/m3 and the maximum safe stress in the material is 7 MPa. (a) Calculate the power that can be transmitted between pulleys of 300 mm diameter rotating at 1500 r.p.m. (b) Find also the shaft speed in r.p.m. at which the power transmitted would be a maximum.

A belt drive consists of two V-belts in parallel, on grooved pulleys of the same size. The angle of the groove is 30°. The cross-sectional area of each belt is 750 mm2 and u= 0.12. The density of the belt material is 1.2 Mg/m3 and the maximum safe stress in the material is 7 MPa. (a) Calculate the power that can be transmitted between pulleys of 300 mm diameter rotating at 1500 r.p.m. (b) Find also the shaft speed in r.p.m. at which the power transmitted would be a maximum.

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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Concept explainers

Axial Load

When a bar of the uniform cross-section is acted by a load, such that the load acts along the longitudinal axis of the bar, such kinds of loadings are known as axial loadings. In general terms, a load is an external force acting on a component. An axial load acts perpendicular to the geometric cross-section of the component. Based on the direction of the application of the load, an axial load can be tensile or compressive. The analysis of bodies under the action of axial loads is generally studied under the branch of mechanics, known as statics.

Question

A belt drive consists of two V-belts in parallel, on grooved pulleys of the
same size. The angle of the groove is 30°. The cross-sectional area of each
belt is 750 mm² and µ= 0.12. The density of the belt material is 1.2 Mg/m³
and the maximum safe stress in the material is 7 MPa.
(a) Calculate the power that can be transmitted between pulleys of 300 mm
diameter rotating at 1500 r.p.m.
(b) Find also the shaft speed in r.p.m. at which the power transmitted
would be a maximum.
(Answers: 172 kW; 2800 r.p.m.)

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