Q5: A steel cantilever shaft. The fillet is 6 mm, Sut= 560 MPa and Sy= 420 MPa. Assume the shaft surface is cold-rolled, operating temperature is 550c, reliability is 50%. Calculate the design safety factor Nfusing Good-Man theory of failure. R6 400N $25 600N 500N 250N 200mm For the stepped rod shown which is acted upon by both a fluctuating axial force (F1) of between - 900 N and 3,600 N and a constant axial force (F2) of 2,250 N, determine (a) The factor-of-safety (Nf) using the Goodman theory. The stepped rod is made of high-strength steel, ground to the dimensions shown. The stepped rod operates at room temperature. Known that the ultimate stress 735 MPa, yield stress 500 MPa and k=1.15. d = 0.48 cm d = 0.32 cm F, F2

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Clutches, Brakes, Couplings, and Flywheels

The clutch is described as a machine element used to connect or disconnect two shafts together to transmit torque or power. The clutch works on the principles of friction. The clutch is commonly used in automobiles to transfer power from the driving shaft to the driven shaft.