Question

3) (10 Marks) The overdrive unit shown below is sometimes used to follow a st automotive transmission to further reduce engine speed. The engine transmission) corresponds to the speed of planet carrier 3, and the drive shaft speed corresponds to that of gear 5; sun gear 2 is held stationary. speed (after the Determine the percentage reduction in engine speed obtains when the overdrive is active. Interaal gear consocted to drive shaft, 427 Stationary sun geat. 1sT Planet pinions, 127 Planet carries connected to transmissin 4) (10 Marks) For the planetary gear train shown below, the arm 6 and gear 5 are driven clockwise (using a LOS from the right end) with magnitues: ω.-150 rad/s, as-200 rad/s Find w2, the angular velocity of sun gear2 4 (28T) 3 (301) Arm Moving axis of rotation of gears 3 and 4 Fixed axis of gear 2 and g rotation of of arm 6 Fxed axis of rotation of gear 5 2(18T) 5(20T)

Answer 1