A reciprocating pump of 200 kg is driven through a belt by an electric motor at 3000 rev/min. The pump is mounted on isolators with total stiffness of 5 M N/m and damping of 3.125 kN-s/m. Determine the vibrating amplitude of the pump at the running speed due to fundamental harmonic force of excitation, 1 kN. Also determine the maximum vibratory amplitude when the pump is switched "ON' and the motor speed passes through resonant condition.

A reciprocating pump of 200 kg is driven through a belt by an electric motor at 3000 rev/min. The pump is mounted on isolators with total stiffness of 5 M N/m and damping of 3.125 kN-s/m. Determine the vibrating amplitude of the pump at the running speed due to fundamental harmonic force of excitation, 1 kN. Also determine the maximum vibratory amplitude when the pump is switched "ON' and the motor speed passes through resonant condition.

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 reciprocating pump of 200 kg is driven through a belt by an electric motor at
3000 rev/min. The pump is mounted on isolators with total stiffness of 5 M N/m
and damping of 3.125 kN-s/m. Determine the vibrating amplitude of the pump
at the running speed due to fundamental harmonic force of excitation, 1 kN.
Also determine the maximum vibratory amplitude when the pump is switched
"ON' and the motor speed passes through resonant condition.

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