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The shaft, as given in Figure is driven by pulley B from an electric motor. Another belt drive from pulley A is operating a compressor. The belt tensions for pulley A are 1500 N and 600 N. The ratio of belt tensions for pulley B is 3.5. The diameter d of pulley A is 150 mm and the diameter d of pulley B is 480 mm. The maximum allowable tensile stress for the shaft material is 170 MPa and the allowable shear stress is 85 MPa. Taking bending and torsion factors as 1.25 and 1.75 respectively, Evaluate the shaft diameter. Also search out the dimensions for a hollow shaft with outside diameter limited to 30 mm. Compare the weights of the two shafts.
(Bernoulli equation along a streamline) Water flows from station (1) to (2) around an expanding corner pipe, 3m high. The speed along the center streamline is 10 m/s at (1) and 5
Problem A cat walks along a uniform plank that is 5.00 m long and has a mass of 9.00 kg. The plank is supported by two sawhorses, one 0.500 m from the left end of the board a
One can increase the toughness of a ceramic material by introducing fibers to the structure of the ceramic and create a ceramic-matrix composite. However, unlike other fiber-reinfo
DIFINE AS INERTIA
hardness of bore well water is less than sea water .justif
Embrittlement For use, at high strength, coupled with good notch toughness, all weld structure must be Tempered low carbon martensite. Carbon and alloy steels having more than
Choose either a plastic, composite, titanium alloy or aluminium alloy for the applications below and briefly explain your choice. In explaining your choice, relate the properties t
Instantaneous Centre: this is a point around which link rotates at a particular instant. Absolute Instantaneous Centre: this is a fixed centre around which link rotates.
Frustum of cone
Changes in Mechanical Properties along with Tempering: Tempering enhances the toughness and ductility of quenched steel though decreases hardness. Following figure demonstrate
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