A shaft is loaded in bending and torsion such that M_a = 600 lb-in, T_a = 400 lb-in, M_m = 500 lb-in, and T_m = 300 lb-in. For the shaft, S_u = 100 ksi and S_y = 80 ksi, and a fully adjusted endurance limit of S_e = 30 ksi. At a notch, K_f = 2.2 and K_fs = 1.8. With a design factor of 2.0, determine the minimum acceptable diameter, using a. Gerber, b. Goodman,

Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise