engineering recuitment HPCL Engineer Mock Test 2024 Mechanical Vibrations Forced Vibration Transmissibility and Magnification Factor
A machine of 250 kg mass is supported on springs of total stiffness 100 kN/m. Machine has an unbalanced rotating force of 350 N at speed of 3600 rpm. Assuming a damping factor of 0.15, the value of transmissibility ratio is:
1
0.0531
2
0.9922
3
0.0162
4
0.0028