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username0194
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Homework Statement
b) During the operation of a machine, two shafts rotate in opposite directions and are then connected by a clutch system. Shaft 1 has a rotational speed of 800 rev/min, a mass of 35 kg and a radius of gyration of 375 mm. Shaft 2 has a rotational speed of 1100 rev/min, a mass of 45 kg and a radius of gyration of 520 mm. Determine:
i) the moment of inertia for each shaft;
ii) the final speed and direction of rotation for the connected shafts;
iii) the angular torque developed by the connected shafts if the rotational speed increases to 900 rev/min in a time of 3.2 s.
iv) the kinetic energy of the connected shafts at the increased speed.
Homework Equations
I1=m1k1squared
w3= 2pieN/60
The Attempt at a Solution
i. calculate I(1)=m1k1squared answers were 4.62 kgm2 & 12.17 kgm2
ii anti clockwise 57.9 rad/s with N3 working out 552.9 rev/min
iii not sure what changes speed here is it full speed combined or just shaft 1 ? Think I know how to do the rest when this is solved