EXTRA PROBLEM 2: A stepped cantilever beam of diameters d and D, machined from an AISI 1060 annealed steel bar, is subjected to a fluctuating moment M, as depicted in the figure Determine the modified endurance limit Se Given: d 25 mm, D = 35 mm, r= 4 mm, Sut = 626 MPa Design Assumption: Reliability is 90% d M S 225.12 MPa hello, could you plz solve it and match it with the final answer below.

Afull journal bearing has a journal diameter of 27 mm, with a unilateral tolerance of -0.028 mm. the bushing bore has a diameter of 27.028 mm and a unilateral tolerance of 0.04 mm. the l/d ratio is 0.5. the load is 1.3 kn and the journal runs at 1200 rev/min. if the average viscosity is 50 mpa-s, find the minimum film thickness, the power loss, and the side flow for the minimum clearance assembly.

Air inially occupying a volume of 1 m2 at 100 kpa, 27 c undergoes three internally reversible processes in series. process 1-2 compression to 500 kpa during which pv constant process 2-3 adiabatic expanslon to 100 kpa process 3-1: constant-pressure expansion to 100 kpa (a) calculate the change of entropy for each of the three processes. (b) calculate the heat and work involved in each process. (c) is this cycle a power cycle or refrigeration cycle?

The proportional limit is always greater than the yield strength for a material. a)-trune b)- false