(a) The bore of the air compressor of Fig. 1 is 4 in., and the stroke is 6 in. The value of the air pressure is 300 psi gage for a crank angle of 45°. The length of the rod is 11 in. Axes x, y, and z are mutually perpendicular. The shaft is turned by a pure torque applied at the right bearing as shown. Make sketches similar to Fig. 1(b), (d), and (e) for this problem, and place the value of all necessary forces and moments thereon.
(b) The cheek is 7/8 in. wide in the x-direction and 1-3/4 in. deep in the z-direction. Make an enlarged sketch for the element with sides parallel to the x- and y-axes lying at the center of the top surface of the cheek. Show all stresses acting.
(c) Repeat part (b) for the element lying at the center of the right vertical side of the cheek.
Figure 1

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