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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.
Radiu s of Gyration (K) The radius of gyration of given lamina about given axis is that distance from te given axis at which all the elemental parts of lamina would have to be
Truss: What are truss? When can the trusses be rigid trusses? State the condition which is followed by simple truss? Sol.: A structure made up of several bars riveted o
what is the reason that rails are made in I-section form and not in the form of rectangular section.
Indicator diagram and indicated power: An indicated diagram is graph between pressure and volume. The former being taken on the vertical axis and latter on the horizontal axis
some suitable examples
Complete outer clutch lugs for deep cuts: Visually check for any deep cuts formed on the outer complete clutch lugs.
Double Refraction An unpolarized plane wave is incident from free space onto a quartz crystal (n e = 1.553 and n o = 1.544) at an angle of incidence 30°. The optic axis lies i
circular form tool design
Calculate the length of plastic deformation: Calculate the length of plastic deformation along 45 o in case the applied stress σ is 63.25% of yield stress in the plate of abo
Adhesives Adhesives are a substance able of holding materials together. A joint is formed among two solids is called adherends with a thin layer of adhesive among them. Mainly
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