Q11/ A disc of mass 4 kg are mounted midway between bearings which may be assumed to be simple supports. The bearing span is 480 mm. The steel shaft, which is horizontal, is 9 mm in diameter. The center of gravity of the disc is placed 3 mm from the geometric center. If the shaft rotates at 760 rpm, find (1) the stiffness of the shaft, (2) the critical speed of the shaft and (3) the amplitude of Wa b3 steady state vibration. Take E = 200 GN/m² and 8 = - 3EIL3 %3D

Q11/ A disc of mass 4 kg are mounted midway between bearings which may be assumed to be simple supports. The bearing span is 480 mm. The steel shaft, which is horizontal, is 9 mm in diameter. The center of gravity of the disc is placed 3 mm from the geometric center. If the shaft rotates at 760 rpm, find (1) the stiffness of the shaft, (2) the critical speed of the shaft and (3) the amplitude of Wa b3 steady state vibration. Take E = 200 GN/m² and 8 = - 3EIL3 %3D

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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