Q: A hollow circular shaft for use in a pumping station is being
A hollow circular shaft for use in a pumping station is being designed with an inside diameter equal to 0.75 times the outside diameter. The shaft must transmit 400 hp at 400 rpm without exceeding the...
See AnswerQ: A tubular shaft being designed for use on a construction site must
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...
See AnswerQ: A propeller shaft of solid circular cross section and diameter d is
A propeller shaft of solid circular cross section and diameter d is spliced by a collar of the same material (see figure). The collar is securely bonded to both parts of the shaft. What should be the...
See AnswerQ: What is the maximum power that can be delivered by a hollow
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...
See AnswerQ: A motor delivers 275 hp at 1000 rpm to the end of
A motor delivers 275 hp at 1000 rpm to the end of a shaft (see figure). The gears at B and C take out 125 and 150 hp, respectively. Determine the required diameter d of the shaft if the allowable shea...
See AnswerQ: The shaft ABC shown in the figure is driven by a motor
The shaft ABC shown in the figure is driven by a motor that delivers 300 kW at a rotational speed of 32 Hz. The gears at B and C take out 120Â kW and 180Â kW, respectively. The l...
See AnswerQ: A circular steel tube with an outer diameter of 75 mm and
A circular steel tube with an outer diameter of 75Â mm and inner diameter of 65Â mm is subjected to torques T at its ends. Calculate the maximum permissible torque Tmax if the al...
See AnswerQ: A hollow aluminum shaft (see figure) has an outside diameter
A hollow aluminum shaft (see figure) has an outside diameter d2 = 4.0 in. and inside diameter d1 = 2.0 in. When twisted by torques T, the shaft has an angle of twist per unit distance equal to 0.548 /...
See AnswerQ: A hollow steel bar (G = 8 0GPa) is twisted
A hollow steel bar (G = 8 0GPa) is twisted by torques T (see figure). The twisting of the bar produces a maximum shear strain γmax = 640 × 10-6 rad. The bar has outside and in...
See AnswerQ: A tubular bar with outside diameter d2 = 4.0 in
A tubular bar with outside diameter d2 = 4.0 in. is twisted by torques T = 70.0 kip-in. (see figure). Under the action of these torques, the maximum tensile stress in the bar is found to be 6400 psi....
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