A huge vertical pump configuration, comprised of one solid disc A and two solid rotors B, is started from rest with a motor drive that delivers torque as a function of time. Determine (a) the total mass moment of inertia in kg-m^2, (b) the angular velocity in RPM 45 seconds after starting from rest and (c) the number of revolutions in that same time period. The mass and radius of disk A are 29800 kg and 2.8 m and same for one rotor B are 1100 kg and 0.3 m. The torque vs time function is: T = 8.4E4 t ^(0.35) N-m. B 29800 1100 2.8 0.3 8.4 0.35 45

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Chapter11: Angular Momentum
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A huge vertical pump configuration, comprised of one
solid disc A and two solid rotors B, is started from rest
with a motor drive that delivers torque as a function
of time. Determine (a) the total mass moment of
inertia in kg-m^2, (b) the angular velocity in RPM 45
seconds after starting from rest and (c) the number of
revolutions in that same time period. The mass and
radius of disk A are 29800 kg and 2.8 m and same for
one rotor B are 1100 kg and 0.3 m. The torque vs
time function is: T = 8.4E4 t ^(0.35) N-m.
B
29800
1100
2.8
0.3
8.4
0.35
45
Transcribed Image Text:A huge vertical pump configuration, comprised of one solid disc A and two solid rotors B, is started from rest with a motor drive that delivers torque as a function of time. Determine (a) the total mass moment of inertia in kg-m^2, (b) the angular velocity in RPM 45 seconds after starting from rest and (c) the number of revolutions in that same time period. The mass and radius of disk A are 29800 kg and 2.8 m and same for one rotor B are 1100 kg and 0.3 m. The torque vs time function is: T = 8.4E4 t ^(0.35) N-m. B 29800 1100 2.8 0.3 8.4 0.35 45
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