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tiffness 250 Nm'. The rotor is unbalanced such that the quivalent to a mass of 5 kg located 50 mm from the axis amplitude of vibration and the force transmitted to the speed of the motor is (a) 1000 rev min", (b) 60 rev min = 0.15.

tiffness 250 Nm'. The rotor is unbalanced such that the quivalent to a mass of 5 kg located 50 mm from the axis amplitude of vibration and the force transmitted to the speed of the motor is (a) 1000 rev min", (b) 60 rev min = 0.15.

Elements Of Electromagnetics
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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A 40 kg motor is similar to the system shown in Figure 3.1. It is supported by four springs each of stiffness 250 Nm1. The rotor is unbalanced such that the unbalance effect is equivalent to a mass of 5 kg located 50 mm from the axis of rotation. Find the amplitude of vibration and the force transmitted to the foundation when the speed of the motor is (a) 1000 rev min", (b) 60 rev min The damping ratio, 5 = 0.15. mu e e mu k/2 k/2 (a) At time t = 0, in equilibirum (b) After time t E
Transcribed Image Text:A 40 kg motor is similar to the system shown in Figure 3.1. It is supported by four springs each of stiffness 250 Nm1. The rotor is unbalanced such that the unbalance effect is equivalent to a mass of 5 kg located 50 mm from the axis of rotation. Find the amplitude of vibration and the force transmitted to the foundation when the speed of the motor is (a) 1000 rev min", (b) 60 rev min The damping ratio, 5 = 0.15. mu e e mu k/2 k/2 (a) At time t = 0, in equilibirum (b) After time t E
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