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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.
design a car to be build by balsa wood trusses, the car has to be with in a specific dimension, calculations of forces on members and nodes using method of joints need to be done a
Remove clutch cover and check clutch operating arm, spring and clutch lifter rod :Check for free movement of rod clutch lifter in the cover right crankcase. Check for lever comple
WIRE MELTING CHARACTERISTICS A non linear relationship exists between the rate at which the wire is fed into the arc and the current required to burn it off to maintain a constan
Consider the expansion loop displayed in the diagram below, which is part of a long pipeline. The loop is made up of a uniform pipe section and is subjected to a temperature raise
Illustration of CAM A cam rotating at consisted angular velocity operates an oscillating follower. Draw cam profile for the given data: Angular displacement of the follower
The following observations were made during a tensile test on mild steel specimen 60 mm in diameter and X mm long. Elongation with 50 KN load (within the limit of proportionality)
Q. What is the use of welding electrode? An electrode is a piece of wire or a rod (of a metal or alloy), with or without flux covering, which carries current for welding. Its o
Spot welding of different metals Though, mild steel is t he metal most commonly used, any prime metal or alloy can be successfully spot welded provided that machine with suitab
Alloys For Cutting Tools Apart from tool steels illustrated in further unit, alloys that comprise wholly non-ferrous elements have been enhanced. Such alloys behave superior
Induction Pressure Welding In this process, the current is induced by high frequency induction process in the job. Due to electrical induction the job is heated. When a suitabl
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