TaskA car engine is found to drive maximum torque of 32

    TaskA car engine is found to drive maximum torque of 320 Nm at 5500rpm. Assuming smooth delivery of the power and torque in normal operation of the motor/engine determine the following that could be used to transmit torque from the engine to the load. a) The minimum allowable solid shaft diameter if a factor of safety of 3 is applied against torsional failure given that the allowable shear stress in the shaft material is 135MN/m2. b) The minimum allowable tubular shaft diameter D if a factor of safety of 3 is applied against torsional failure assuming the ratio of the internal diameter d to the external diameter is given by c) If the motor/engine is to turn a shaft of length 400mm compare the masses of the two shafts in parts (a) and (b). Take the density of steel as 7900kg/ m3.
    TaskA car engine is found to drive maximum torque of 320 Nm at 5500rpm. Assuming smooth delivery of the power and torque in normal operation of the motor/engine determine the following that could be used to transmit torque from the engine to the load. a) The minimum allowable solid shaft diameter if a factor of safety of 3 is applied against torsional failure given that the allowable shear stress in the shaft material is 135MN/m2. b) The minimum allowable tubular shaft diameter D if a factor of safety of 3 is applied against torsional failure assuming the ratio of the internal diameter d to the external diameter is given by c) If the motor/engine is to turn a shaft of length 400mm compare the masses of the two shafts in parts (a) and (b). Take the density of steel as 7900kg/ m3.
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