Question

2. A machine of mass (30-70 kg is running at (500 r.p.m. The mass is supported on two
springs of connected in series having stiffness 8 KN/m each and a dashpot which offers a
resistance of (2) N at 0.25 m/sec. The unbalance of the rotor is equivalent to a mass of 0.8 kg
located (5+X) cm from the axis of rotation. Knowing that the motor is constrained to move
vertically. Determine
i.
j.
Damping factor
Amplitude of vibration and phase angle
Resonant speed and resonant amplitude
Force exerted by spring and dashpot
iv.
(15)
plz solve this​

Answer 1

Answer:

Solution. Given : m = 75 kg ; s = 10 N/mm = 10 ×103 N/m ; x1 = 38.4 mm = 0.0384 m ; x3 = 6.4 mm = 0.0064 m

Since the stiffness of each spring is 10 × 103 N/m and there are 3 springs, therefore total stiffness,

Explanation:

Answer 2

Answer:

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