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Mr. Dubey • 100.69K Points
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Q. In a gearing system, pump speed is one third of the motor. Shaft from motor is 6 cm in diameter and 30cm long, the impellar shaft is 10cm diameter and 60cm long. Mass moment of inertia is 1500 Kgm2, C = 80Gn/m2. Neglecting the inertia of shaft and gears calculate the frequency of free torsional vibrations in Hz.

  • (A) 4.7
  • (B) 5.7
  • (C) 4.5
  • (D) 5.5
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