Engineering Mechanics - DynamicsChapter 17Problem 17-71The variable-resistance motor is often used for appliances, pumps, and blowers. By applying acurrent through the stator S, an electromagnetic field is created that “pulls in” the nearest rotor poles.The result of this is to create a torque Mabout the bearing at A. If the rotor is made from iron andhas a cylindrical coreof mass M1, diameter dand eight extended slender rods, each having a massM2and length l, determine its angular velocity at time tstarting from rest.Given:M13kg=l100mm=M21kg=d50 mm=M4Nm⋅=t5s=Solution:IA12M1d2⎛⎝⎞
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This note was uploaded on 08/16/2011 for the course EGN 3321 taught by Professor Christianfeldt during the Spring '08 term at University of Central Florida.