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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.
3. The tensile modulus of elasticity of a unidirectional carbon-fiber-reinforced-plastic composite material that contains 64 percent by volume of carbon fibers and is stresssed und
Q. Bolt Stress to Seat the Gasket? The required bolt stress to seat the gasket can be calculated, using the recommended gasket seating stress provided by the manufacturer in ac
Initia l Tension in The Belt: Let T o = initial tension in belt T 1 = Tension in tight side T 2 = Tension in slack side T C = Centrifugal Tension in belt T
Concept of plane stress: Define the concept of plane stress. Sol.: In cubical element of strained material is acted on by stresses acting on only 2 pairs of parallel plane
Show that the force exerted by jet of water on a fixed semi-circular plate in the direction of jet when the jet strikes at the centre of the semi-circular plate is two times the fo
Q. Flange Bevel And Lap Ring Weld? The fillet weld attaching the lap ring to the shell shall be an equal leg fillet weld, with the leg dimension equal to the nominal shell thic
Thermal efficiency and compression ratio: Calculate thermal efficiency and compression ratio for automobile working on otto cycle. If energy generated per cycle is thrice whi
Thermal Properties Each solid expand on heating and convention on cooling. The thermal expansion of solids is due to basic structure whether atoms occupy mean position on a fi
What is elements with increasing dimensions?
APPLICATIONS OF CO 2 WELDING CO 2 welding is extremely useful for joining thin sheets of thickness range 1.0 to 2.0 mm because it is possible to keep the heat input low to av
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