The gear motor can develop 3 hp when it turns at 150 rev>min. If the allowable shear stress for the shaft is tallow = 12 ksi, determine the smallest diameter of the shaft to the nearest 1 8 in. that can be used.

If the gears are subjected to the torques shown, determine the maximum shear stress in the segments AB and BC of the A-36 steel shaft. The shaft has a diameter of 40 mm.

3. Gear B supplies 20 KW of power, while gears A, C and D withdraw 6 kW, 4 kW and 10 kW, respectively. If the shaft is made of steel with the allowable shear stress of 80 MPa, and the relative angle of twist between any two gears cannot exceed 0.065 rad, determine the required minimum diameter d of the shaft to the nearest millimeter. The shaft is rotating at 800 rpm. 600 mm 600 mm 600 mm

A steel core is bonded firmly to the copper tube (shell) to form the shaft shown. The length of the shaft is 450 mm and the end A is fixed to the wall. Take the shear modulus of steel and copper as 76 GPa and 38 GPa, respectively. The diameter of the core is 60 mm and the outer diameter of the shaft is 100 mm. Determine the maximum external torque (Tmax) so that the absolute maximum shear stress for any point H on the surface of the copper shell does not exceed 50 MPa. 450 mm A 100 mm 60 mm В Tmax =? kN · m

Part A The turbine develops 230 kW of power, which is transmitted to the gears such that both B and C receive an equal amount. The rotation of the 100-mm-diameter A992 steel shaft is w = 720 rev/min. (Figure 1) The journal bearing at D allows the shaft to turn freely about Determine the absolute maximum shear stress in the shaft. Express your answer to three significant figures and include appropriate units. its axis. µA ? Value Units max Submit Request Answer Figure 1 of 1 Part B Determine the rotation of end D of the shaft relative to A. Use Gst = 75.0 GPa. Express your answer to three significant figures and include appropriate units. 1.5 m µA ? 2 m Value Units 1 m Submit Denuest Anewer

10-57. The tubular drive shaft for the propeller of a hovereraft is 6 m long. If the motor delivers 4 MW of power to the shaft when the propellers rotate at 25 rad's, determine the required inner diameter of the shaft if the outer diameter is 250 mm. What is the angle of twist of the shaft when it is operating? Take Ta-90 MPa and G = 75 GPa.

The 60-mm-diameter shaft is made of 6061-T6 aluminum having allowable shear stress of tallow = 80 MPa. Determine the maximum allowable torque T. Also, find the corresponding angle of twist of disk A relative to disk C.

A circular hollow shaft has outer diameter of 60 mm and thickness of 15 mm and is subjected to a torque load of 4.2 kN•m. Determine the resulting minimum shear stress. Also determine the resulting maximum shear stress.

The hollow shaft used in the system has the following conditions: Outer Ø:110 mmØ Allowable Shearing Stress:85 MPa Determine the thickness (mm) of the shaft. Round to the nearest whole number for the thickness and use 2 decimal places for other solved values. Provide a torque diagram, strictly follow instructed sign convention, and start from left to right.

A shaft drives a gear set that is transmitting 8 hp at 2250 rpm. The diameter of the shaft is 1.75 in. Determine the torsional shear stress developed in the shaft.