A shaft is supported by two bearings placed 1.2 m apart. A pulley of diameter 425 mm is mounted at a distance of 300 mm to the right of left hand bearing and this drives a pulley directly below it with the help of belt having maximum tension of 2.25 kN. Another pulley of diameter 525 mm is placed 200 mm to the left of right hand bearing and is driven with the help of electric motor and belt, which is placed horizontally to the right. The angle of contact for both the pulleys is 180° and µ = 0.24. Determine the suitable diameter for a solid shaft, allowing working stress of 63 MPa in tension and 42 MPa in shear for the material of shaft. Assume that the torque on one pulley is equal to that on the other pulley. ( Refer the text book link given via moodle. Follow Example 14.9).

A shaft is supported by two bearings placed 1.2 m apart. A pulley of diameter 425 mm is mounted at a distance of 300 mm to the right of left hand bearing and this drives a pulley directly below it with the help of belt having maximum tension of 2.25 kN. Another pulley of diameter 525 mm is placed 200 mm to the left of right hand bearing and is driven with the help of electric motor and belt, which is placed horizontally to the right. The angle of contact for both the pulleys is 180° and µ = 0.24. Determine the suitable diameter for a solid shaft, allowing working stress of 63 MPa in tension and 42 MPa in shear for the material of shaft. Assume that the torque on one pulley is equal to that on the other pulley. ( Refer the text book link given via moodle. Follow Example 14.9).

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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Slope and Deflection

The slope in a deflected beam is described as an angle in radians made by the tangent of the section with the original axis of the beam. The deflection at any point on the axis of the beam is defined as the lateral displacement of the point before and after loading.

Question

A shaft is supported by two bearings placed 1.2 m apart. A pulley of diameter 425 mm
is mounted at a distance of 300 mm to the right of left hand bearing and this drives a pulley
directly below it with the help of belt having maximum tension of 2.25 kN.
Another pulley of diameter 525 mm is placed 200 mm to the left of right hand bearing and is
driven with the help of electric motor and belt, which is placed horizontally to the right. The
angle of contact for both the pulleys is 180° and u = 0.24.
Determine the suitable diameter for a solid shaft, allowing working stress of 63 MPa in tension
and 42 MPa in shear for the material of shaft. Assume that the torque on one pulley is equal to
that on the other pulley. (Refer the text book link given via moodle. Follow Example 14.9).

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