Q14 Three solid cylindrical rods are welded together to form the compound axial member. The member is attached to a fixed support at A. Each rod has an elastic modulus of E = 40 GPa. Given rod lengths and areas: L1 = 1,440 mm, L2 = 1,680 mm, L3 = 1,200 mm, A1 = 260 mm2, A2 = 130 mm2, and A3 = 65 mm2. What magnitude of external load P is needed to displace end D a distance u0 = 60 mm to the right?

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.