Question: A 36-lb motor is bolted to a light horizontal beam which has a static deflection of 0.075 in. due to the weight of the motor.

A 36-lb motor is bolted to a light horizontal beam which has a static deflection of 0.075 in. due to the weight of the motor. Knowing that the unbalance of the rotor is equivalent to a weight of 0.64 oz located 6.25 in. from the axis of rotation, determine the amplitude of the vibration of the motor at a speed of 900 rpm, assuming

(a) That no damping is present,

(b) That the damping factor c/cc is equal to 0.055.

A 36-lb motor is bolted to a light horizontal beam which has

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ROTOR W 064 02 Wft Pm Pm SIN Wet r 625 IN From Eq 1952 a c 0 k 3 900 26 60 W 8 st Pm ... View full answer

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