Problem 16.7. A hollow shaft of external diameter 120 mm transmits 300 kW power at200 r.p.m. Determine the maximum internal diameter if the maximum stress in the shaft is notto exceed 60 N/mm2.(AMIE, Summer 1990)Problem 16.9. A solid cylindrical shaft is to transmit 300 kW power at 100 r.p.m.(a} If the shear stress is not to exceed 80 N/mm?, find its diameter.(b) What percent saving in wweight would be obtained if this shaft is replaced by a hollowone whose internal diameter equals to 0.6 of the external diameter, the length, the material andmaximum shear stress being the same ?(AMIE, Winter 1983)Problem 16.11. A hollow shaft is to transmit 300 kW power at 80 rp.m. If the shearstress is not to exceed 60 Nimm and the internal diameter is 0.6 of the external diameter, findthe external and internal diameters assuming that the mazimum torque is 1.4 times the mean.(AMIE, Winter 1986)

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Answered: Problem 16.7. A hollow shaft of…

Problem 16.7. A hollow shaft of external diameter 120 mm transmits 300 kW power at 200 r.p.m. Determine the maximum internal diameter if the maximum stress in the shaft is not

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

100%

Problem 16.7. A hollow shaft of external diameter 120 mm transmits 300 kW power at
200 r.p.m. Determine the maximum internal diameter if the maximum stress in the shaft is not
to exceed 60 N/mm2.
(AMIE, Summer 1990)
Problem 16.9. A solid cylindrical shaft is to transmit 300 kW power at 100 r.p.m.
(a} If the shear stress is not to exceed 80 N/mm?, find its diameter.
(b) What percent saving in wweight would be obtained if this shaft is replaced by a hollow
one whose internal diameter equals to 0.6 of the external diameter, the length, the material and
maximum shear stress being the same ?
(AMIE, Winter 1983)
Problem 16.11. A hollow shaft is to transmit 300 kW power at 80 rp.m. If the shear
stress is not to exceed 60 Nimm and the internal diameter is 0.6 of the external diameter, find
the external and internal diameters assuming that the mazimum torque is 1.4 times the mean.
(AMIE, Winter 1986)

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