The rotating solid steel shaft is simply supported by bearings at points B and C and is
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The rotating solid steel shaft is simply supported by bearings at points B and C and is driven by a gear (not shown) which meshes with the spur gear at D, which has a 150-mm pitch diameter. The force F from the drive gear acts at a pressure angle of 20°. The shaft transmits a torque to point A of TA = 340 N · m. The shaft is machined from steel with Sy = 420 MPa and Sut = 560 MPa. Using a factor of safety of 2.5, determine the minimum allowable diameter of the 250-mm section of the shaft based on
(a) A static yield analysis using the distortion energy theory
(b) A fatigue-failure analysis.
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Assume sharp fillet radii at the bearing shoulders for estimating stress-concentration factors.
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b F cos 20d2 T F 2 Td cos 20 23400150 cos 20 4824 ...View the full answer
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Related Book For 
Shigleys Mechanical Engineering Design
ISBN: 978-1121345317
9th edition
Authors: Richard G. Budynas, J. Keith Nisbett
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