A countershaft carrying two V-belt pulleys is shown in the figure. Pulley A receives power froma motor through a belt with the belt tensions shown. The power is transmitted through the shaftand delivered to the belt on pulley B. Assume the belt tension on the loose side at B is 15 percentof the tension on the tight side. Given: TẠI = 250 lbf, T42 = 37.5 lbf, da = 9 in, dg = 11.25 in,and dshaft = 1.042 in.18 in12 inTAITAZA(da)dshaftB(ds)a) Determine the tensions in the belt on pulley B, assuming the shaft is running at a constantspeed.b) Find the magnitudes of the bearing reaction forces, assuming the bearings act as simplesupports.c) At the location of the maximum bending moment, determine the bending stress andtorsional shear stress.d) At the point of maximum bending moment, determine the principal stresses and themaximum shear stress.

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A countershaft carrying two V-belt pulleys is shown in the figure. Pulley A receives power from a motor through a belt with the belt tensions shown. The power is transmitted through the shaft and delivered to the belt on pulley B. Assume the belt tension on the loose side at B is 15 percent of the tension on the tight side. Given: TAI = 250 lbf, T42= 37.5 lbf, da=9 in, ds= 11.25 in, and dahafi = 1.042 in. `12 in TAI TAZ A(da) dahat B(d8) a) Determine the tensions in the belt on pulley B, assuming the shaft is running at a constant speed. b) Find the magnitudes of the bearing reaction forces, assuming the bearings act as simple supports. c) At the location of the maximum bending moment, determine the bending stress and torsional shear stress. d) At the point of maximum bending moment, determine the principal stresses and the maximum shear stress.

A countershaft carrying two V-belt pulleys is shown in the figure. Pulley A receives power from a motor through a belt with the belt tensions shown. The power is transmitted through the shaft and delivered to the belt on pulley B. Assume the belt tension on the loose side at B is 15 percent of the tension on the tight side. Given: TAI = 250 lbf, T42= 37.5 lbf, da=9 in, ds= 11.25 in, and dahafi = 1.042 in. `12 in TAI TAZ A(da) dahat B(d8) a) Determine the tensions in the belt on pulley B, assuming the shaft is running at a constant speed. b) Find the magnitudes of the bearing reaction forces, assuming the bearings act as simple supports. c) At the location of the maximum bending moment, determine the bending stress and torsional shear stress. d) At the point of maximum bending moment, determine the principal stresses and the maximum shear stress.

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 countershaft carrying two V-belt pulleys is shown in the figure. Pulley A receives power from
a motor through a belt with the belt tensions shown. The power is transmitted through the shaft
and delivered to the belt on pulley B. Assume the belt tension on the loose side at B is 15 percent
of the tension on the tight side. Given: TẠI = 250 lbf, T42 = 37.5 lbf, da = 9 in, dg = 11.25 in,
and dshaft = 1.042 in.
18 in
12 in
TAI
TAZ
A(da)
dshaft
B(ds)
a) Determine the tensions in the belt on pulley B, assuming the shaft is running at a constant
speed.
b) Find the magnitudes of the bearing reaction forces, assuming the bearings act as simple
supports.
c) At the location of the maximum bending moment, determine the bending stress and
torsional shear stress.
d) At the point of maximum bending moment, determine the principal stresses and the
maximum shear stress.

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