Q 3. A solid shaft having diameter d = 8 cm, length I = 35 cm and modulus of rigidity G = 4 x 1010 N/m2 is attached to a circular disc which has mass moment of inertin / = 0.6 Kg m2. If this system is allowed to vibrate in a viscous medium, and the amplitudes of vibratory motion on one side of the mean position for consecutive cycles are found to be 8', 5', and 3' respectively: Determine the following: (i) The logarithmic decrement, 8 (ii) The damping ratio, (iii) The torsional stiffness of the solid shaft (iv) The torsional damning cocfficient cof the system

Q 3. A solid shaft having diameter d = 8 cm, length I = 35 cm and modulus of rigidity G = 4 x 1010 N/m2 is attached to a circular disc which has mass moment of inertin / = 0.6 Kg m2. If this system is allowed to vibrate in a viscous medium, and the amplitudes of vibratory motion on one side of the mean position for consecutive cycles are found to be 8', 5', and 3' respectively: Determine the following: (i) The logarithmic decrement, 8 (ii) The damping ratio, (iii) The torsional stiffness of the solid shaft (iv) The torsional damning cocfficient cof the system

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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