A motor supplies 173 hp at 650 rpm to flange A of the shaft. Gear B transfers 75 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 T = 5.8 ksi. Shaft (3) is a solid steel [G=9100 ksi] shaft with an allowable shear stress of T = 10.2 ksi. Assume that L₁=2.3 ft, L₂=1.2 ft, L3=2.9 ft. Determine: (a) the minimum permissible diameter d₁=d₂ for aluminum shafts (1) and (2). (b) the minimum permissible diameter da for steel shaft (3). (c) the rotation angle (PDIA of gear D with respect to flange A if the shafts have the minimum permissible diameters as determined in (a) and (b). L₁ TB ค Q (3) TD

A motor supplies 173 hp at 650 rpm to flange A of the shaft. Gear B transfers 75 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 T = 5.8 ksi. Shaft (3) is a solid steel [G=9100 ksi] shaft with an allowable shear stress of T = 10.2 ksi. Assume that L₁=2.3 ft, L₂=1.2 ft, L3=2.9 ft. Determine: (a) the minimum permissible diameter d₁=d₂ for aluminum shafts (1) and (2). (b) the minimum permissible diameter da for steel shaft (3). (c) the rotation angle (PDIA of gear D with respect to flange A if the shafts have the minimum permissible diameters as determined in (a) and (b). L₁ TB ค Q (3) TD

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Concept explainers

Power Transmission Elements

It is defined as the energy transfer from one location to another location. The energy will start moving from the energy generation source to the energy applied position to obtain the work output. From this method, a large amount of electric energy moves from the power station to various electrical substations.

Question

A motor supplies 173 hp at 650 rpm to flange A of the shaft. Gear B transfers 75 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 t = 5.8 ksi. Shaft (3) is a solid steel [G= 9100 ksi] shaft with an allowable shear stress of
T = 10.2 ksi. Assume that L₁=2.3 ft, L2=1.2 ft, L3-2.9 ft. Determine:
(a) the minimum permissible diameter d₁=d₂ for aluminum shafts (1) and (2).
(b) the minimum permissible diameter d3 for steel shaft (3).
(c) the rotation angle A 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) d3= 1.680
(c) & DIA
2.45
= i
0.5106
TB
B
L2-
in.
in.
(3)
L3
Tp.

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A motor supplies 173 hp at 650 rpm to flange A of the shaft. Gear B transfers 75 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 T = 5.8 ksi. Shaft (3) is a solid steel [G=9100 ksi] shaft with an allowable shear stress of T = 10.2 ksi. Assume that L₁=2.3 ft, L₂=1.2 ft, L3-2.9 ft. Determine: (a) the minimum permissible diameter d₁=d₂ for aluminum shafts (1) and (2). (b) the minimum permissible diameter d3 for steel shaft (3). (c) the rotation angle D/A 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 = i (b) d3= i (c) & DIA = i (1) L₁ TB. B (2) L2 in. in. o' (3) L3 Tp Mommu D
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