Question 1 O pts Comprehensive Shaft Design Problems For the following Problem, it will be necessary to do the following: (a) Determine the magnitude of the torque in the shaft at all points. (b) Compute the forces acting on the shaft at all power-transmitting elements. (c) Compute the reactions at the bearings. (d) Draw the complete load, shear, and bending moment diagrams. Neglect the weight of the elements on the shafts, unless otherwise noted. Design the complete shaft, including the specification of the overall geometry and the consideration of stress concentration factors. The analysis would show the minimum acceptable diameter at each point on the shaft to be safe from the standpoint of strength. The shaft in Figure P12-2 rotates at 200 rpm. Pulley A receives 10 hp from below. Gear C delivers 6 hp to the mating gear below it. Chain sprocket D delivers 4 hp to a shaft above. Use SAE 1117 cold-drawn steel. A. Draw a torque diagram of how the torque flows through the shaft.... What is the torque at 20" diameter pulley at point A? (+/- 25 Lbin) A B C DE -10 +44 10-in dia. 20-in dia. spur gear 20FD -6-in dia. flat-belt pulley A C drives Q FIGURE P12-2 (Problems 2, 12, 13, and 23) chain sprocket D Question 2 B. Based on your torque diagram what it the torque on the shaft at gear C? (+/- 25 lbin) Question 3 C. What is the torque on the shaft at sprocket D? (+/-25 lbin) Question 4 D. What is the torque on the shaft at point E? (+/-25 lbin) O pts O pts O pts Question 5 E. What is the radial force created by the gears at point C? (+/- 10 lbs) Question 6 F. What is the tangential force created by the gear train at point C? (+/- 10 lbs) Question 7 G. What is the force generated by the flat belt at point A? (+/- 10 lbs) O pts O pts O pts Question 8 H. What is the force generated by the chain drive located at point D? (+/- 10 lbs) Question 9 O pts O pts I. By creating a free body diagram FBD, shear "V" diagram, and bending moment "M" diagram in the horizontal and vertical planes you will be able to answer the following questions... What is the magnitude of the largest in plane shear value the shaft is subject to? (+/-10 lbs) Magnitude is always positive... no +'s or -'s needed. Question 10 O pts J. What is the magnitude of the largest in plane bending moment the shaft is subject to? (+/- 10 lbin) no +'s or -'s Question 11 K. What is the combined bending moment at point C? (+/- 10 lbin) Hint use both horizontal and vertical M diagrams along with Pythagorean theorem. O pts