A motor driving a solid circular steel shaft transmits 50kW of power at 600rpm. If the diameter of the shaft is 50mm, determine maximum shear stress in the shaft?
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- A tubular shaft being designed for use on a construction site must transmit 120 kW at 1,75 Hz, The inside diameter of the shaft is to be one-half of the outside diameter. If the allowable shear stress in the shaft is 45 MPa, what is the minimum required outside diameter d?What is the maximum power that can be delivered by a hollow propeller shaft (outside diameter 50 mm, inside diameter 40 mm, and shear modulus of elasticity 80 GPa) turning at 600 rpm if the allowable shear stress is 100 MPa and the allowable rate of twist is 3.0°/m?The stepped shaft shown in the figure is required to transmit 600 kW of power at 400 rpm. The shaft has a full quarter-circular fillet, and the smaller diameter D1= 100 mm. If the allowable shear stress at the stress concentration is 100 MPa, at what diameter will this stress be reached? Is this diameter an upper or a lower limit on the value of D2?
- A motor driving a solid circular steel shaft with diameter d = 1.5 in, transmits 50 hp to a gear at B, The allowable shear stress in the steel is 6000 psi. Calculate the required speed of rotation (number of revolutions per minute) so that the shear stress in the shaft does not exceed the allowable limit.A propeller shaft for a small yacht is made of a solid steel bar 104 mm in diameter. The allowable stress in shear is 48 MPa, and the allowable rate of twist is 2.0° in 3.5 meters. (a) Assuming that the shear modulus of elasticity is G = 80 GPa, determine the maximum torque that can be applied to the shaft. (b) Repeat part (a) if the shaft is now hollow with an inner diameter of 5d18. Compare values to corresponding values from part (a).A solid shaft is transmitting 1MW at 240rpm . Determine the diameter of the shaft if the maximum torque transmitted exceeds the mean torque by 20%.Take the maximum allowable shear stress are 60MPa.
- A solid shaft in a rolling mill transmits 30kW at 100 rpm. Find the diameter in mm of the shaft so as not to exceed a shearing stress of 80 MPa and an angle of twist of more than 10 degrees in a length of 8 meters. G = 83 GPafind the maximum shear stress induced in a solid circular shaft of diameter 150 mm when the shaft transmits 150 KW power at 150 RPM.(6) A solid shaft is used to transmit 75kW @ 550rpm. If the shaft design stress will not exceed 26N/mm2 , determine the diameter of the solid shaft.
- A solid steel shaft, whose Sy= 300 MPa and Su= 400 MPa, is used to transmit 3000 kW at 800 rpm. Determine its diameter.A solid shaft of 150 mm diameter is used to transmit torque. Find the maximum torque transmitted by the shaft if the maximum shear stress induced to the shaft is 45 N/mm2Find the diameter of the propeller shaft, which has to transmit power of 1.5 kW at 8 Hz without exceeding shear stress of 25 MPa.