A motor supplies 154 hp at 470 rpm to flange A of the shaft. Gear B transfers 74 hp of power to operating machinery in the factory, andthe remaining power in the shaft is transferred by gear D. Shafts (1) and (2) are solid aluminum (G = 4400 ksi] shafts that have the samediameter and an allowable shear stress of r= 5.3 ksi. Shaft (3) is a solid steel (G-10800 ksi] shaft with an allowable shear stress ofr = 12.3 ksi. Assume that Ly-2 ft. L₂-1.4 ft. Lg-1.8 ft. Determine:(a) the minimum permissible diameter dyd₂ for aluminum shafts (1) and (2).(b) the minimum permissible diameter da for steel shaft (3).(c) the rotation angle of gear D with respect to flange A if the shafts have the minimum permissible diameters as determined in (a)and (b).Answers:(a) d-da-(b) dj-(c) DIA=eTextbook and Media.8in.in.To

Answered: Image /qna-images/answer/2a2917b8-34d6-4375-9e6e-c48cb8abb797.jpg

A motor supplies 154 hp at 470 rpm to flange A of the shaft. Gear B transfers 74 hp of power to operating machinery in the factory, and the remaining power in the shaft is transferred by gear D. Shafts (1) and (2) are solid aluminum (G= 4400 ksi] shafts that have the same diameter and an allowable shear stress of r = 5.3 ksi. Shaft (3) is a solid steel (G= 10800 ksi] shaft with an allowable shear stress of = 12.3 ksi. Assume that L₁-2 ft. L 1.4 ft. Lg-1.8 ft. Determine: (a) the minimum permissible diameter dd₂ for aluminum shafts (1) and (2). (b) the minimum permissible diameter da for steel shaft (3). (c) the rotation angle of gear D with respect to flange A if the shafts have the minimum permissible diameters as determined in (a) and (b). Answers: (a) d₁-d₂- (b) dj- (c) DIA 8 in. in. To

A motor supplies 154 hp at 470 rpm to flange A of the shaft. Gear B transfers 74 hp of power to operating machinery in the factory, and the remaining power in the shaft is transferred by gear D. Shafts (1) and (2) are solid aluminum (G= 4400 ksi] shafts that have the same diameter and an allowable shear stress of r = 5.3 ksi. Shaft (3) is a solid steel (G= 10800 ksi] shaft with an allowable shear stress of = 12.3 ksi. Assume that L₁-2 ft. L 1.4 ft. Lg-1.8 ft. Determine: (a) the minimum permissible diameter dd₂ for aluminum shafts (1) and (2). (b) the minimum permissible diameter da for steel shaft (3). (c) the rotation angle of gear D with respect to flange A if the shafts have the minimum permissible diameters as determined in (a) and (b). Answers: (a) d₁-d₂- (b) dj- (c) DIA 8 in. in. To

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

Design of Shafts and Shaft Components

The shaft is basically defined as the machine element that rotates, is in circular cross-section, it is majorly used to transfer the power from one part of the system to another, or from a power generating machine to a power absorbing machine. The shaft is supported on bearings and is rotated with the help of a set of gears or pulleys that are used for the power transmission. Bending moment, torsion, and an axial force act upon the shaft. Designing of shaft primarily involves determining stresses at a critical point in the shaft that is arising due to loading.

Question

A motor supplies 154 hp at 470 rpm to flange A of the shaft. Gear B transfers 74 hp of power to operating machinery in the factory, and
the remaining power in the shaft is transferred by gear D. Shafts (1) and (2) are solid aluminum (G = 4400 ksi] shafts that have the same
diameter and an allowable shear stress of r= 5.3 ksi. Shaft (3) is a solid steel (G-10800 ksi] shaft with an allowable shear stress of
r = 12.3 ksi. Assume that Ly-2 ft. L₂-1.4 ft. Lg-1.8 ft. Determine:
(a) the minimum permissible diameter dyd₂ for aluminum shafts (1) and (2).
(b) the minimum permissible diameter da for steel shaft (3).
(c) the rotation angle of gear D with respect to flange A if the shafts have the minimum permissible diameters as determined in (a)
and (b).
Answers:
(a) d-da-
(b) dj-
(c) DIA=
eTextbook and Media.
8
in.
in.
To

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