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Motion analysis of spinning ring, calculate torque required inc. air resistance

Question asked by Oliver Peel on Apr 2, 2013
Latest reply on Nov 22, 2019 by Shaun Bentley

Hey guys, kind of a newbie at this Solidworks game, and im kinda stuck! (of course)


So basically I have this designed below, its already been manufactured and works great. I did some initial torque calculations, and used the Solidworks Motion to backup my calculations. I worked out I needed a motor capable of 82 newton-mm to get it up to speed within 60 seconds, but what I, nor did my solidworks motion estimation take into account, was air resistance. And so the motor I have driving it doesnt get it up to speed!



Is there any was of calculating the torque of a motor required to spin the ring up to its required speed, and take into account air resistance so I can source a motor with the required torque?


Thanks in advance guys