Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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Transcribed Image Text:$16-77
16-77. The planetary gear system is used in an automatic
transmission for an automobile. By locking or releasing
certain gears, it has the advantage of operating the car at
different speeds. Consider the case where the ring gear R is
held fixed, wR = 0, and the sun gear S is rotating at
@R
@s = 5 rad/s. Determine the angular velocity of each of the
planet gears P and shaft A.
WR
R
20.000
32
C
ws
40 mm
st
80 mm
40 mm
Prob. 16-77
A
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- 3. For the following planetry gear train determine the following 4 Sun gear: N2 = 24 teeth, Internal gear connected to drive shaft, 42T Input to Sun gear: w2 = 100 rpm ccw Input to Planet gears: W4 = 240 rpm cw Ring gear: N5 = 52 teeth. 2 a. Determine the planet gear teeth (N4) such that the carrier ouput is w arm = 120 rpm cw. b. Determine the angular velocity of the ring gear ws (units and direction). Planet pinions, 127 Planet carrier connected to transmission Figure not to scale.arrow_forward- once answered correctly will UPVOTE!!arrow_forwardFor the compound planetary gear train shown, find the absolute angular velocity of the ring gear. Given: N=40, N3=35, N4=35, N;=65, N6=160, w2=40 rad/s, and Warm=-60 rad/s. (Not to scale.) 5 6 4 2arrow_forward
- 8arrow_forwardAs shown in the figure a planetary gear train consist of the arm C coupled to two gears A and B with 40 and 60 teeth respectively. If the arm rotates at 150 rpm in the anticlockwise direction about the center of the fixed gear A. Calculate the speed of gear B. How fast will gear B move if the gear A makes 300 rpm in the clockwise direction instead of being fixed. (must use Tabular method) B Arm C C A B Nber of teeth Total rotationsarrow_forwardQ1/ In a planetary gear train shown in the Figure. Determine the angular velocity of gear A. Int Take: TA= 22, Ts= 30, TB= 25, TD= 50, T₁ (Ext.) = 220, TE (Int.) = 200, Ns= +30 rpm, and Narm= -90 rpm. Ext. Arm S D 20arrow_forward
- 2. For the following compound gear train determine the angular velocity of gear 6. W2 @₂ = 1800 rpm T₂ = 1200Lbf-in N₂ (Driver) N₂ = 17 teeth 6 N₁ = 28 teeth №6 Ns (Driven) N=12 teeth N₁ = 38 teeth N6 = 24 teetharrow_forwardSolve for letter b. The answernon letter A is 210.94 rad/s. write the answerarrow_forwardDraw free-body diagrams of the two gears, assuming an input couple M on theOUT X shaft of the larger gear in the direction shown. Include forces at bearings A, B, D and E. M isthe reaction couple at the output shaft - i.e. the resistance to turning of the object being driven.The gears have 48 and 24 teeth respectively. If the input gear (large gear) turns at 100 rpm(= revolutions per minute), the output speed (small gear) is _______rpm.Wil OUT X IN Xl M be larger or smaller than M ?arrow_forward
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