The drive shaft of a car is subjected to both bending and torsion. Thetorque, T, is constant at 400 Nm and the bending moment has thefollowing cycle parameters: mean moment of Mm = 250 Nm andalternating moment of Ma = 800 Nm.The shaft is forged from high-carbon steel with an ultimate strength Sut= 615 MPa and endurance limit Se' = 307.5 MPa. The reliability must be90% and the safety factor is nf = 2.6. For the analysis of the stressconcentration, assume the proportions shown in the figure and a sizefactor kb = 0.9. To evaluate the factors kt, kts, q and qs, it isrecommended to use Excel spreadsheets. Calculate the first estimate ofthe minimum shaft diameter (d) in millimeters using the Goodmancriterion.1≥4D/d = 1.33r/d = 0.25r> 4 mm (To evaluate q and q₁, it is initially recommended r = 4 mm)

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Answered: The drive shaft of a car is subjected…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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