solid alloy shaft 5cm diameter is to be coupled in series with a hollow steel shaft of the same external diameter. Find the internal diameter of the steel shaft if the angle of twist per unit length is to be 75% of that of the alloy shaft. Determine the speed at which the shafts are to be driven to transmit 200kW, if the limits of shearing stress are to be 55N/mm2 and 75N/mm2 in alloy and steel respectively. Gsteel = 2.2Galloy

Q: A solid shaft having a diameter of 100mm has an allowable shearing stress of 80 MPa. Determine the…

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Q: A 2-in diameter steel shaft rotates at 240 rpm. If the shearing stress is limited to 12 ksi,…

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Q: A compound shaft consists of brass segment (1) and aluminum segment (2). Segment (1) is a solid…

A: According to the given dataWe need to findminimum required diameter for the segments 1 and 2

Q: A solid steel shaft AB shown in figure is to be used to transmit power 2750 ftib/s from the motor M…

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Q: A 2-m long hollow steel shaft (G = 75 GPa) has an outside diameter of 75 mm and an inside diameter…

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Q: 2.0 in. solid shaft transmits power at 120 rpm. If the allowable shearing stress is 12ksi. (a)…

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Q: A 2-m long hollow steel shaft (G = 75 GPa) has an outside diameter of 75 mm and an inside diameter…

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Q: A hollow power transmission shaft of outer diameter 95 mm and inner diameter 45 mm is 5 m in length.…

A: if you have any doubt please comment

Q: Q2) A hollow shaft is required to transmit 600 kW at 110 r.p.m., the maximum torque being 20%…

A: Step 1: Step 2: Step 3: Step 4:

Q: A rectangular key was used in a pulley connected to a line-shaft with a power of 125 kW at a speed…

A: Power, P= 125 kW= 125000 W Speed, N= 900 rpm= 900/60 rps Shear stress of the shaft, τshaft= 40 N/mm2…

Q: 3. Gear B supplies 20 KW of power, while gears A, Cand D withdraw 6 kW, 4 kW and 10 kW,…

A: Answer: The required minimum diameter of the shaft is 24.5 mm.

Q: Select the size of a hollow steel shaft necessary to transmit 150 hp at 250 rpm without exceeding an…

A: Given data,    Power=150hp    speed=250 rpm    shear stress=4.7ksi    angle  of twist =0.35°…

Q: T' T An aluminum alloy shaft has an allowable shear stress of Tallow= 200MPa. If the diameter of the…

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Q: For the steel shaft shown in Fig. Determine the maximum torque transmitted by any transverse cross…

A: The free-body diagram of the beam can be drawn as, Applying the torque balance,…

Q: A solid shaft is transmitting 15 MW of power at 1760 rpm. If the allowable shear stress must not…

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Q: (6) A solid shaft is used to transmit 75kW @ 550rpm. If the shaft design stress will not exceed…

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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.