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A pulley is keyed to a shaft midway between two bearings. The shaft is made of cold drawn steel for which the ultimate strength is 550 MPa and the yield strength is 400 MPa. The bending moment at the pulley varies from -150N.m to +400 N.m as the torque on the shaft varies from -50N.m to 150 N.m. Obtain the diameter of the shaft for an indefinite life. The stress concentration factors for the keyway at the pulley in bending and in torsion are 1.6 and 1.3 respectively. Take the following values. Factor of safety=1.5, Load correction factors=1 and 0.6 in torsion, size effect factor=0.85 and surface effect factor=0.88

A pulley is keyed to a shaft midway between two bearings. The shaft is made of cold drawn steel for which the ultimate strength is 550 MPa and the yield strength is 400 MPa. The bending moment at the pulley varies from -150N.m to +400 N.m as the torque on the shaft varies from -50N.m to 150 N.m. Obtain the diameter of the shaft for an indefinite life. The stress concentration factors for the keyway at the pulley in bending and in torsion are 1.6 and 1.3 respectively. Take the following values. Factor of safety=1.5, Load correction factors=1 and 0.6 in torsion, size effect factor=0.85 and surface effect factor=0.88

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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A pulley is keyed to a shaft midway between two bearings. The shaft is made of cold drawn steel for which the ultimate strength is 550 MPa and the yield strength is 400 MPa. The bending moment at the pulley varies from -150N.m to +400 N.m as the torque on the shaft varies from -50N.m to 150 N.m. Obtain the diameter of the shaft for an indefinite life. The stress concentration factors for the keyway at the pulley in bending and in torsion are 1.6 and 1.3 respectively. Take the following values. Factor of safety=1.5, Load correction factors=1 and 0.6 in torsion, size effect factor=0.85 and surface effect factor=0.88

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