A 0.20 m long shaf with negligible inertia has a flywheel suspended from the end and a damper to damp the vibrations. The shaft has a torsional stiffness of 5,000 N-m/rad and a modulus of rigidity of 152 Mpa. The flywheel has a moment of inertia of 30 kg-m2 and the damping ratio is 0.4. Calculate the following:a) The damped frequency (in Hz)b) The damping coefficient (in N-m-s)c) The actual angular frequency (in Hz)d) The amplitude reduction factore) The diameter of the shaft (in mm)

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Answered: A 0.20 m long shaf with negligible…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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A 0.20 m long shaf with negligible inertia has a flywheel suspended from the end and a damper to damp the vibrations. The shaft has a torsional stiffness of 5,000 N-m/rad and a modulus of rigidity of 152 Mpa. The flywheel has a moment of inertia of 30 kg-m² and the damping ratio is 0.4. Calculate the following:

a) The damped frequency (in Hz)

b) The damping coefficient (in N-m-s)

c) The actual angular frequency (in Hz)

d) The amplitude reduction factor

e) The diameter of the shaft (in mm)

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