4. A line shaft with a power of 100 kW at a speed of 1,200 rpm, had a rectangular key in its pulley connection. Consider the shearing stress of the shaft to be 40 N/mm² and the key to be 30 N/mm². Determine the length of the rectangular key if the width is one-fourth that of the shaft diameter. A. 67.64 mm B. 77.64 mm C. 97.64 mm D. 87.64 mm

4. A line shaft with a power of 100 kW at a speed of 1,200 rpm, had a rectangular key in its pulley connection. Consider the shearing stress of the shaft to be 40 N/mm² and the key to be 30 N/mm². Determine the length of the rectangular key if the width is one-fourth that of the shaft diameter. A. 67.64 mm B. 77.64 mm C. 97.64 mm D. 87.64 mm

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

4. A line shaft with a power of 100 kW at a speed of 1,200 rpm, had a rectangular key in its pulley
connection. Consider the shearing stress of the shaft to be 40 N/mm² and the key to be 30 N/mm².
Determine the length of the rectangular key if the width is one-fourth that of the shaft diameter.
A. 67.64 mm
B. 77.64 mm
C. 97.64 mm
D. 87.64 mm

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UNIVERSITY of Prince Edward ISLAND i mm GGGG 54 mm T₁-1.2 kN-m 1-08 kNm 0 154 T-0.1 kN m 40 mm ASSIGNMENT 2.6 Under normal operating conditions, the electric motor exerts a torque of 2.4 kN m on shaft AB. Knowing that each shaft is solid, determine the maximum shearing stress in (a) shaft AB, (b) shaft BC, (c) shaft CD. ASSIGNMENT 2.7 Two shafts, each of -in. diameter, are connected by the gears shown. Knowing that G=11.2 x 10 psi and that the shaft at F is fixed, determine the angle through which end
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