H.W: Design a cast iron rigid type flange coupling to transmit 20 kW at 900 r.p.m. from an electric motor to a compressor. The following permissible stresses may be used : Shear stress for shaft, bolt and key material = 40 MPa Crushing stress for bolt and key = 80 MPa Shear stress for cast iron = 8 MPa %3D Draw a neat sketch of the coupling.

Q: P (AA) forces are as Q1: A shaft made of steel receives 8 kW power at 1500 r.p.m. A pulley mounted…

A:

Q: Design a muff coupling to connect two shafts transmitting 42 kW at 130 rpm. The permissible shear…

A: Answer: ◆ Design of shaft: Shaft diameter is 90 mm ◆ Design of muff: Outer diameter is 195 mm Length…

Q: Shown above is a cord tension tester. Find the tension T in the cord, expressing it in terms of the…

A: The tension in the cord is 4Pcot 10

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

A:

Q: (3) A flange coupling is to connect two 60mm shafts. The hubs of the coupling are Ø120mm, 100mm…

A:

Q: what is the Moment at point A

A: First find the moment produce by given torque as follows.

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: 1 Example 2 Steel plates, both 8mm thick, No washers held together with M10 Corse threaded bolt. the…

A:

Q: A Hollow power transmission shaft of length ‘L’ 1103 mm, outer diameter ‘D’ 73mm and inner diameter…

A: The length of the shaft,(L)=1103 mm. The outside diameter of the shaft,(do)=73 mm. The inside…

Q: naft has a diameter of 41mm. The PCD of the coupling bolts is 63mm. amter is 3mm, and the yield…

A: Given data-T=354Nm  D=41mmPCD=63mm

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.