A torque of 10 kN - m is supplied to the steel (G = 80 GPa) factory drive shaft of Fig. P7-8 by a belt that drives pulley A. A torque of 6 kN - m is taken off by pulley B and the remainder by pulley C. Shafts AB and AC are 2.25 m and 1.60 m long, respectively. If the diameter of shaft AB is 80 mm and the diameter of shaft AC is 65 mm, determine (a) The maximum shearing stress in each of the shafts. (b) The angle of twist of pulley B with respect to pulley A. (c) The angle of twist of pulley C with respect to pulley B. Figure P7-8

A torque of 10 kN - m is supplied to the steel (G = 80 GPa) factory drive shaft of Fig. P7-8 by a belt that drives pulley A. A torque of 6 kN - m is taken off by pulley B and the remainder by pulley C. Shafts AB and AC are 2.25 m and 1.60 m long, respectively. If the diameter of shaft AB is 80 mm and the diameter of shaft AC is 65 mm, determine (a) The maximum shearing stress in each of the shafts. (b) The angle of twist of pulley B with respect to pulley A. (c) The angle of twist of pulley C with respect to pulley B. Figure P7-8

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

Combined Loading

Any functioning component, such as machine parts, structural members, pressure vessels, and so on, are all under the influence of more than one force. When anybody is under the influence of more than one force such as shear forces, bending moments, axial forces, torsion, and so on, then such body is said to be under combined loading. A very practical example of combined loading is the crankshaft of an internal combustion engine (IC engine). The crankshaft of the IC engine is under high rpm, which is caused due to the torsional forces. Due to the presence of piston, counterbalances, and internal imbalances, the crankshaft experiences lateral forces and due to the rise in temperature, the crankshaft undergoes thermal expansion, which pulls the crankshaft along the axial direction and lateral direction. The presence of unbalanced loads along the periphery of the crankshaft also induces a bending moment.

Question

A torque of 10 kN - m is supplied to the steel (G = 80 GPa) factory drive shaft of Fig. P7-8 by a belt that drives pulley A. A
torque of 6 kN - m is taken off by pulley B and the remainder by pulley C. Shafts AB and Ac are 2.25 m and 1.60 m long,
respectively. If the diameter of shaft AB is 80 mm and the diameter of shaft ACis 65 mm, determine
(a) The maximum shearing stress in each of the shafts.
(b) The angle of twist of pulley B with respect to pulley A.
(c) The angle of twist of pulley Cwith respect to pulley 8.
Figure P7-8
B
-Bearing

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The maximum shearing stress in each of the shafts.

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The angle of twist of pulley B with respect to pulley A

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The angle of twist of pulley C with respect to pulley B

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