Question

A machine of mass (30) kg is running at (500) r.p.m. The mass is supported on two
springs connected in series having stiffness 8 KN/m each and a dashpot which offers a
resistance of (Z) N at 0.25 m/sec. The unbalance of the rotor is equivalent to a mass of 0.8 kg
located (5) cm from the axis of rotation. Knowing that the motor is constrained to move
vertically. Determine
i. Damping factor
ii. Amplitude of vibration and phase angle
iii. Resonant speed and resonant amplitude
iv. Force exerted by spring and dashpot

Answer 1

Answer:

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