Refer to Figure Q2.A tray of mass mı is supported by 3 springs as shown in Figure 3(a). The natural frequencyfa is 5.0Hz. An additional mass motor of m2 = 3.0kg (in OFF condition) is placed at the centeron top of the mass, the natural frequency is observed to be 2.5Hz.a) Calculate the mass mı.The motor m2 is ON and it rotates at the speed of 600 rpm.Calculate:a) The transmissibilityb) Attenuationc) Explain what will happen if the system run at Resonant Frequencym2m1Figure 2(a): Original systemFigure 2(b): system with m2 added

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Refer to Figure Q2. A tray of mass mi is supported by 3 springs as shown in Figure 3(a). The natural frequency fa is 5.0Hz. An additional mass motor of m2 = 3.0kg (in OFF condition) is placed at the center on top of the mass, the natural frequency is observed to be 2.5Hz. a) Calculate the mass mi. The motor m2 is ON and it rotates at the speed of 600 rpm. Calculate: a) The transmissibility b) Attenuation c) Explain what will happen if the system run at Resonant Frequency m2 m1 Figure 2(a): Original system Figure 2(b): system with m2 added

Refer to Figure Q2. A tray of mass mi is supported by 3 springs as shown in Figure 3(a). The natural frequency fa is 5.0Hz. An additional mass motor of m2 = 3.0kg (in OFF condition) is placed at the center on top of the mass, the natural frequency is observed to be 2.5Hz. a) Calculate the mass mi. The motor m2 is ON and it rotates at the speed of 600 rpm. Calculate: a) The transmissibility b) Attenuation c) Explain what will happen if the system run at Resonant Frequency m2 m1 Figure 2(a): Original system Figure 2(b): system with m2 added

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 undamped vibrations

Whenever an object/system displaces in either side of its equilibrium position with the help of an external/internal means, then the object/system moves regularly or randomly on both sides of its equilibrium position. This motion is called vibration. Generally, there are three types of vibration: longitudinal vibration, transverse vibration, and torsional vibration.

Question

Refer to Figure Q2.
A tray of mass mı is supported by 3 springs as shown in Figure 3(a). The natural frequency
fa is 5.0Hz. An additional mass motor of m2 = 3.0kg (in OFF condition) is placed at the center
on top of the mass, the natural frequency is observed to be 2.5Hz.
a) Calculate the mass mı.
The motor m2 is ON and it rotates at the speed of 600 rpm.
Calculate:
a) The transmissibility
b) Attenuation
c) Explain what will happen if the system run at Resonant Frequency
m2
m1
Figure 2(a): Original system
Figure 2(b): system with m2 added

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