1. A motor car shaft consists of a steel tube 30 mm internal diameter and 4 mm thick. The engine develops 10 kW at 2000 r.p.m. Find the maximum shear stress In the tube when the power is transmlt- ted through a 4 :1 gearing. [Ans. 30 MPa]

Q: a steel shaft is 100 hp at a speed of 950 rpm. the shear stress is 8000 psi. what is the economical…

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Q: A compound steel [G = 70 GPa] shaft consists of a solid 59-mm-diameter segment (1) and a solid…

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Q: 1) A 35 mm diameter shaft operating at 2000 rpm transmits 1000 kW. The bending and axial loads on…

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Q: The drive shaft for a truck (outer diameter 60 mm and inner diameter 40 mm) is running at 42 Hz. If…

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Q: A hollow steel shaft, 500 mm outside diameter and 300 mm inside diameter, has a coupling 80 mm thick…

A: Given data: Outside diameter of hollow shaft = 500 mm                    Inside diameter of hollow…

Q: Q) A two-segment shaft is used to transmit power at constant speed through the pulleys shown above…

A: Solution:

Q: An aircraft engine develops 150kW at 1500rpm. The engine output shaft is steel which fails when the…

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Q: A circular steel shaft with length, L (m) has an outer diameter, d2 (mm) and inner diameter, d1…

A: To find: The angle of twist in degrees. Given: The inner diameter is d1=100 mm1 m1000 mm=0.1 m. The…

Q: The compound shaft shown in the figure consists of two steel [G = 80 GPa] pipe segments. The shaft…

A: Given Data:The modulus of rigidity of steel is..The outside diameter of segment 1 is..The wall…

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: 3.1.2 If the allowable shear stress is 30MPA, what is the maximum power that can be 3.1 The drive…

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Q: The rotating shaft shown is subjected to a constant force. Shaft material is AISI 1020 cold drawn…

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Q: A drive shaft is made of solid steel. It is desired to transmit 2.5 hp at 150 rpm. The allowable…

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Q: A compound steel [G= 94 GPa] shaft consists of solid 28-mm-diameter segments (1) and (3) and tube…

A: Shear modulus of the compound steel (G): 94 GPa (or 94 x 10^9 Pa)Diameter of solid segments 1 and 3…

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.