A machine with a mass of “M" is mounted on an elastic foundation, and is found to vibrate m with a deflection of 240 mm at resonance. The unbalanced mass “m" of the motor is % 16 of mass M. If the damping ratio of the foundation is 0.072. a) Determine the eccentricity “e" of the unbalanced mass. b) Assuming that the eccentric mass remains the same, determine the mass to be added to the machine if the deflection of the machine at resonance is M required to be 150 mm.

A machine with a mass of “M" is mounted on an elastic foundation, and is found to vibrate m with a deflection of 240 mm at resonance. The unbalanced mass “m" of the motor is % 16 of mass M. If the damping ratio of the foundation is 0.072. a) Determine the eccentricity “e" of the unbalanced mass. b) Assuming that the eccentric mass remains the same, determine the mass to be added to the machine if the deflection of the machine at resonance is M required to be 150 mm.

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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