Is this force ditribustion in planetry gear train is correct
Is this force ditribustion in planetry gear train is correct
(OP)
Hi,
I am trying to design epicyclic gear train.
in which
Input :sun gear
output:carrier through 3planetry gears
fixed :Ring gear
i analysed as follows
Input force (from sun)=Fs
Force at single planet gear=Fp=Fs/3
Force at ring gear=fr=Fs
Force at Carrier=3*Fp
its bit confusing for me to anlyse force distribution in gear train,is above analysation is correct?.
any advice is appreciable
Thanks in before
John
I am trying to design epicyclic gear train.
in which
Input :sun gear
output:carrier through 3planetry gears
fixed :Ring gear
i analysed as follows
Input force (from sun)=Fs
Force at single planet gear=Fp=Fs/3
Force at ring gear=fr=Fs
Force at Carrier=3*Fp
its bit confusing for me to anlyse force distribution in gear train,is above analysation is correct?.
any advice is appreciable
Thanks in before
John





RE: Is this force ditribustion in planetry gear train is correct
Force at Carrier=2*Fp for each planet gear
... but planetaries make my head hurt, so maybe you need to re-read the chapter.
Mike Halloran
Pembroke Pines, FL, USA
RE: Is this force ditribustion in planetry gear train is correct
Don't you mean torque (not force)?
RE: Is this force ditribustion in planetry gear train is correct
Torque is force times a radius.
RE: Is this force ditribustion in planetry gear train is correct
If only output torque is necessary, then it can be calculated as: (input torque)*1/(speed ratio)
RE: Is this force ditribustion in planetry gear train is correct
The sun gear input is torque which creates a force on the sun and planets teeth. Therefore, when thought2007 statement "Input force (from sun)=Fs" it is not accurate.