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Homework Statement
http://imageshack.com/a/img908/282/eCETrh.png
The green support turns clockwise at +w around the white fixed axis. The stator of the motor is fixed on the support. The stator of the generator is fixed on the support too. The motor drives the generator with a crossed belt. The rotor of the motor turns clockwise at +10w relatively to its stator (not lab ref). The radius of the pulley1 is the same than the pulley2.
a/ Find the angular velocity of the rotor of the generator in the lab reference
b/ Find the angular velocity of the rotor of the generator relatively from its stator
c/ Is there a torque on the support ?
Homework Equations
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The Attempt at a Solution
a/
The rotor turns at +10w relatively to its stator and like its stator turns clockwise at +w, the rotor turns clockwise at +11w, is it correct ?
So, the rotor of the generator turns at -11w in the lab ref because the belt is crossed, is it correct ?
b/ Like the stator of the generator turns clockwise at +w, the angular velocity of the rotor relatively from its stator is -11w-w=-12w, is it correct ?
c/ There is no torque on the support. The stator of the motor gives a counterclockwise torque -T (T is any value), the stator of the generator gives a counterclockwise torque -T. Axes of the pulley gives a clockwise torque +2T, so the sum of torque is 0 on the support. Is it correct ?
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