A fixed-fixed steel beam, of length 5 m, width 0.5 m, and thickness 0.1 m, carries an electric motor of mass 75 kg and speed 1200 rpm at its mid-span, as shown in Fig.. A rotating force of magnitude 5000N is developed due to the unbalance in the rotor of the motor. A. Find the amplitude of steady-state vibrations by disregarding the mass of the beam, assuming negligible damping. B. What will be the amplitude if the mass of the beam is considered? C. Discuss that how the amplitude of vibration can be reduced in both cases Fo wt

A fixed-fixed steel beam, of length 5 m, width 0.5 m, and thickness 0.1 m, carries an electric motor of mass 75 kg and speed 1200 rpm at its mid-span, as shown in Fig.. A rotating force of magnitude 5000N is developed due to the unbalance in the rotor of the motor. A. Find the amplitude of steady-state vibrations by disregarding the mass of the beam, assuming negligible damping. B. What will be the amplitude if the mass of the beam is considered? C. Discuss that how the amplitude of vibration can be reduced in both cases Fo wt

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

Free Damped Vibrations

Free vibration is a type of vibration in which the external force is removed after giving the initial displacement to a body/system. In other words, in this type of vibration, force is applied at the initial displacement of the system, and after the initial displacement, force is removed, and the system vibrates at the natural frequency.

Question

A fixed-fixed steel beam, of length 5 m, width 0.5 m, and thickness 0.1 m, carries an
electric motor of mass 75 kg and speed 1200 rpm at its mid-span, as shown in Fig.. A
rotating force of magnitude 5000N is developed due to the unbalance in the rotor of
the motor.
A. Find the amplitude of steady-state vibrations by disregarding the mass of the
beam, assuming negligible damping.
B. What will be the amplitude if the mass of the beam is considered?
C. Discuss that how the amplitude of vibration can be reduced in both cases
Fo
wt
2.

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