The design of a machine element calls for a 40-mm-outer diameter shaft to transmit 45 kW. (a) If the speed of rotation is 720 RPM, determine the maximum shearing stress in shaft a. (b) If the speed of rotation can be increased 50 % to 1080 RPM, determine the largest inner diameter of shaft b for w/c the maximum shearing stress will be the same in each shaft.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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The design of a machine element calls for a 40-mm-outer diameter shaft to transmit 45 kW. (a) If the speed of
rotation is 720 RPM, determine the maximum shearing stress in shaft a. (b) If the speed of rotation can be
increased 50 % to 1080 RPM, determine the largest inner diameter of shaft b for w/c the maximum shearing
stress will be the same in each shaft.
Transcribed Image Text:The design of a machine element calls for a 40-mm-outer diameter shaft to transmit 45 kW. (a) If the speed of rotation is 720 RPM, determine the maximum shearing stress in shaft a. (b) If the speed of rotation can be increased 50 % to 1080 RPM, determine the largest inner diameter of shaft b for w/c the maximum shearing stress will be the same in each shaft.
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