Question

A compound shaft drives several pulleys, as shown.Segments (1) and (2) of the compound shaft are hollow aluminum [G = 4,000 ksi] tubes that have a polar moment of inertia of J = 2.740 in.4. Segments(3) and (4) are solid steel [G = 12,000 ksi] shafts that have a polar moment of inertia of J = 0.635in. 4. The bearings shown allow the shaft to turn freely. Assume TB = 810 lb-ft, Tp = 600 lb-ft, TE=100 lb-ft, L₁= 86 in., L2 = 33 in., L3 = 41 in., and L4 =43 in. Calculate the rotation angle (including the correct sign) of pulley E with respect to point A.

Fig: 1

Fig: 2