Numerical - Gyroscopic couple acting on a disc with angular velocity, given density

Q.  Calculate gyroscopic couple acting on a disc which has radius of 135 mm. Angular and precessional velocities are 15 rad/sec and 7 rad/sec respectively.
Assume density = 7810 kg/m3  and thickness of disc = 30 mm
- Published on 06 Aug 15

a. 12.83 N-m
b. 10.99 N-m
c. 11 N-m
d. Incomplete data

ANSWER: 12.83 N-m

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    Discussion

  • shubham satyawan upare   -Posted on 24 Jun 21
    Gyroscopic couple = Iww
    I=MR2
    mass = density*volume
    volume=area*thickness
    area= pi*R2

  • jitesh   -Posted on 05 Nov 17
    plzz solve this question

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