PROBLEM 3. A 5-m steel shaft rotating at 1.20 Hz has 72 kW applied at a gear that is 2 m from the left end where 20 kW are removed. At the right end, 32 kW are removed and another 20 kW leaves the shaft at 1.5 m from the right end. (a) Find the uniform shaft diameter so that the shearing stress will not exceed 69 MPa. (b) If a uniform shaft diameter of 110 mm is specified, determine the angle by which one end of the shaft lags behind the other end. Use G = 82 GPa -20 KW +72 KW -20 KW +32 KW A B C D 2 m 1.5 m 1.5 m

Q: 2. The composite shaft of total length 1.8 m consists of 5 mm thick brass and is fixed to a 30 mm…

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Q: Q1: A motor driving a solid circular steel shaft transmits 30 kW to a gear at B (as shown). The…

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Q: aft with a hollow cross section is subjected to torque of magnitude T = 5.5 kN-m. If the outer…

A: Given:T=5.5 kN.mdo=0.1 mt=10 mm

Q: A motor driving a solid circular steel shaft transmits 40 kW of power at 500 rpm. If the diameter of…

A: Given data: The power transmitted The speed of the shaft The diameter of the shaft Determine:The…

Q: A motor driving a solid circular steel shaft transmits 30 kW to a gear at B (as shown). The…

A: Here is the solution for the above question.

Q: 1. A solid steel shaft ABCDE having diameter d = 40 mm turns with a constant angular velocity and…

A: For the solution refer below images.

Q: posite shaft shown, composed of a steel (G = 77 GPa) core inside an aluminum (G = 25 GPa) jacket,…

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Q: alley C is of diameter 8.0 in. -) Neglecting stress concentrations, determine the locations and…

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Q: 8.9 (A/B). A solid steel shaft of 200 mm diameter transmits 5 MW at 500 rev/min. It is proposed to…

A: Givend1=200mmP1=5MWN1=500 rpmP2=7MWN2=440 rpmW2=0.80W1L2=L1τ1=τ2

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.