Question

Electric motor, dashpot, and spring system. The total mass of the system is 21.5 kg. The motor runs at 500 RPM. The spring has a stiffness of 6400 N/m and the dashpot offers a resistance of 500 N at 4.0 m/sec. The unbalanced mass of 0.65 kg rotates at a 0.04m radius. Calculate damping factor, the amplitude of vibration, phase angle, resonant speed, resonant amplitude, and force exerted by the spring and ​

Answer 1

Answer:

For a Damped free vibration,

where, ζ is damping factor, C is damping coefficient and Cc is critical damping coefficient.

when ζ =1, c = cc = 2√(km)   

Calculation:

Given, cc1 = 0.1 kg/s, m2 = 2m and k2 = 8k

 kg/s.

Explanation:

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