A flange coupling is to connect two 57mm shafts. The hubs of the coupling are each 111m in diameter and 92mm hub length. Six 16- mm bolts in a 165-mm diameter bolt circle connects the flanges. The key is 14mm high, 14mm wide and 86mm long. Coupling is to transmit 45kW at 160 rpm. For all parts, yield point value in shear is one-half the yield point value in tension or compression that is 448MPa. Determine a. Shearing stress of the key and its factor of safety b. Bearing stress of the key and its factor of safety c. Shearing stress in bolts and the factor of safety based on yield point

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Q: Q.1 Design a compression coupling for a shaft to transmit 2000 N-m. The allowable shear stress for…

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Q: esign a clamp coupling to transmit ‘35’ kW at ‘120’ r.p.m. The allowable shear stress for the shaft…

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Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.