A solid steel disc is made of two thin concentric discs with the same thickness, t. as shown. The disc can rotate freely about the perpendicular axis through its centre of mass. It is subject to a torque T = 5 Nm. The parameters are as follows: Density of steel = 7860 Kg/m³ Diameter D1 = 0.3 m Diameter D2 = 0.5 m Thinkpo00 0.05 m t D1 D2

A solid steel disc is made of two thin concentric discs with the same thickness, t. as shown. The disc can rotate freely about the perpendicular axis through its centre of mass. It is subject to a torque T = 5 Nm. The parameters are as follows: Density of steel = 7860 Kg/m³ Diameter D1 = 0.3 m Diameter D2 = 0.5 m Thinkpo00 0.05 m t D1 D2

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 solid steel disc is made of two thin
concentric discs with the same
thickness, t. as shown.
The disc can rotate freely about
the perpendicular axis through its centre
of mass. It is subject to a torque T = 5 Nm.
The parameters are as follows:
Density of steel = 7860 Kg/m³
Diameter D1 = 0.3 m
Diameter D2 = 0.5 m
Thickness t = 0.05 m
t
D1
D2
Calculate the angular acceleration of the disc. Give your answer in rad/s² to 2
decimal places.

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