Question

For the shaft shown on the next page, draw the free body diagram of just the shaft (isolated from the pulleys) including directions and values of all reaction loads at the self-aligning bearings A and B. Once complete, directly under your FBD, draw the shear force diagram (SFD), bending moment diagram (BMD) and torque diagram (TD) for the shaft with all important values shown on the figures. Directions are critical and you must show your axes (choose). Note, in this problem, the units are in inches (in) and pounds (lb). You must stay in these units. Here length is in inches, force is in pounds, and torque and bending are expressed in lb.in (i.e. to work with English units wherever you would normally use m replace with in, wherever you would normally use N, replace with lb. Later for stress, where a pascal is equal to a N/m2, in English units we use in/lb2, i.e. “pounds per square inch”).

1-in.-dia. shaft 2 in. A 1000 lb 3 in. 4 in. 500 lb 4 in. 3 in.

Answer 1