The shaft is supported by a journal bearing at A and a thrust bearing at B. Determine the normal force, shear force and moment at a section passing through (a) point C, which is just to right of bearing at A, and (b) point D, which is just to the left of the Force F2. Given: F1 = 2.5 kip F2 = 3 kip lb W = 75 ft - b = 12 ft c = 2 ft a = 6 ft F2 •D B

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Q: 2a. If the load intensities w1=82 N/m, w2=176 N/m, and w3=102 N/m, determine the total moment (in…

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Q: M= 1,900 N-m Fi=449N F1 F2=304 N Fs=704 N B F3 F2 30 60° 4 m 3 m M 2 m

A: GIVEN DATA  SYSTEM OF FORCES ON BEAM GIVEN  WE HAVE TO FIND RESISTANT FORCE AND MOMENT AT POINT A

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Q: Determine the shear force at point C if F₁ = 499 lb, F2 = 263 lb, and F3 = 307 lb.

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Combined Loading

Any functioning component, such as machine parts, structural members, pressure vessels, and so on, are all under the influence of more than one force. When anybody is under the influence of more than one force such as shear forces, bending moments, axial forces, torsion, and so on, then such body is said to be under combined loading. A very practical example of combined loading is the crankshaft of an internal combustion engine (IC engine). The crankshaft of the IC engine is under high rpm, which is caused due to the torsional forces. Due to the presence of piston, counterbalances, and internal imbalances, the crankshaft experiences lateral forces and due to the rise in temperature, the crankshaft undergoes thermal expansion, which pulls the crankshaft along the axial direction and lateral direction. The presence of unbalanced loads along the periphery of the crankshaft also induces a bending moment.