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A 25 mm diameter uniform steel shaft is 600 mm long between bearings.
a) find the lowest critical speed of the shaft
b) If the goal is to double the critical speed, find the new diamters
c) A half sized model of the original shaft has what critical speed?
Design Engineering: Find Specific Load and Heat Generated Per Minute, A load of 6400 Kg is carried by a journal rotating in a 270 mm bearing diameter and 400 mm long. Find the specific load on the bearing and the heat generated per minute in the b..
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Sketch the frequency response of the system. Overlay the frequency spectrum of the excitation and as you start the system up, increasing Ω from 0 to 60 rpm, what speeds are most likely to excite large amplitude response? Why?
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