A 360-lb motor is bolted to a light horizontal beam. The unbalance of its rotor is equivalent
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A 360-lb motor is bolted to a light horizontal beam. The unbalance of its rotor is equivalent to a 0.9-oz weight located 7.5 in. from the axis of rotation, and the static deflection of the beam due to the weight of the motor is 0.6 in. The amplitude of the vibration due to the unbalance can be decreased by adding a plate to the base of the motor. If the amplitude of vibration is to be less than 2.16 × 10??3 in. for motor speeds above 300 rpm, determine the required weight of the plate.
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From Problem 19115 Since Mo k Before plate is added Xm 071 ...View the full answer
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Related Book For
Vector Mechanics for Engineers Statics and Dynamics
ISBN: 978-0073212227
8th Edition
Authors: Ferdinand Beer, E. Russell Johnston, Jr., Elliot Eisenberg, William Clausen, David Mazurek, Phillip Cornwell
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