er system was designed to minimize the force transmitted to the bottom of the fan. An attenuator with an attenuation ratio of ζ = 0.2 was used.
er system was designed to minimize the force transmitted to the bottom of the fan. An attenuator with an attenuation ratio of ζ = 0.2 was used.
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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ENGINEERING VIBRATION QUESTION.
An electric fan with a mass of 50 kg is subjected to harmonic excitation due to an unbalanced mass. A spring-damper system was designed to minimize the force transmitted to the bottom of the fan. An attenuator with an attenuation ratio of ζ = 0.2 was used. Calculate the spring stiffness so that the force transmitted to the floor is less than 10% when the fan rotates at 10,000 rpm.
how can i solve it..... It's too difficult for me.
6
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