The motor A develops a torque at gear B of 575 lb-ft, which is applied along the

Question

The motor A develops a torque at gear B of 575 lb-ft, which is applied along the axis of the 2 in diamater steel shaft CD. This torque is to be transimitted to the pinion gears at E and F. The bearings at C and D only exert force reactions on the shaft and do not resist torque.  

The motor A develops a torque at gear B of 575 lb-ft, which is applied along the axis of the 2 in. diameter steel shaft CD. This torque is to be transmitted to the pinion gears at E and F. The bearings at C and D only exert force reactions on the shaft and do not resist torque. Gst = 12,000 ksi. You may use either the Force or Displacement method. Clearly label your compatibility and equilibrium steps. If the pinion gears at E and F are temporarily fixed: Find the reactions at C and D (in lb-ft), Find the maximum shear stress in shaft CBD (in ksi), The shaft is redesigned with a material where G = 6,000 ksi, tau fail = 100 ksi, and F. S. = 2. 10. Specify the new shaft diameter to the nearest 1/8" increment.

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