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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.
Distribution of shearing stresses on l--sections and miscellaneous sections
Consider radar with a PRF of 5 kHz. What is the maximum unambiguous range R ua of this radar, in km? If a target is located at a range of 50 miles, how many pulses will the r
Data given for gear problem T P = 30 TG = 80 φ = 20o m = 12 mm Addendum = 10 mm then determine the length of path of contact, length of Arc of contact and contact Ratio.
what is system of force?
what is strength of material?
Occupational Health Problems Various health problems have been found to be rooted in type of work, equipment and Workplace. It was eighteenth century while definite observati
(a) Describe the basic procedure for mechanical engg. design. (b) What is the relationship between the functional requirement and appearance of product?
Thermodynamics. Justify that it is the science to calculate energy, energy and entropy. Sol : Thermodynamics is science which deals with conversion of heat into mechanical e
A tensile test on a specimen having an initial diameter of 13.11 mm and an initial gauge length of 200.0 mm, gave the following data:
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