General Studies · Mechanical Vibrations
A rotor has a mass of 12 kg and is mounted midway on a horizontal shaft which is supported at the ends by two bearings (assumed as simply supported). The bearings are 1 m apart. What will be the critical (whirling) speed of the shaft? [Take EI = 4 kN·m2, g = 10 m/s2]
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 130√10 rad/s
- 2400 rad/s
- 3300 rad/s
- 440√10 rad/s✓
Correct answer
40√10 rad/s
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