Q9:- An epicyclic gear train consists of three wheels A, B and C as shown in the Fig. below. Wheel A has 72 internal teeth, C has 32 external teeth. The wheel B gears with both A and C and is carried on an arm which rotates about the center of A at 18 rpm. If the wheel A is fixed, determine the speed of wheels B and c. B ațm A

6. 5 3 Arm 6. 2 Arm Arm 2 3 1 Bearing Given N2 = 30, N3 = 25, N4 =45, N5 = 40, N6 = 200 W2 = 240 rpm ccw, warm = 120 rpm cw, T2 = 12 ft-lb Show your work. Answers without work will not be accepted a. Identify the gear sets. b. Determine the velocity gear train ratio and the angular velocity of gear 6. c. Determine the torque gear train ratio and output torque of gear 6.