Planetary gear simulation unrealistic!!
Planetary gear simulation unrealistic!!
(OP)
Hi,
So I'm trying to design a planetary transmission clutch. The video of the simulation is here http://www.youtube.com/watch?v=LNwmsSHFuPk
The sun gear is the driven gear and the notched plate is the planet carrier (ie not attached to the sun or ring gear directly). now I was expecting the ring gear to rotate freely leaving the planet gears & carrier in place until it hit the stop. But as you can see SW has other plans!
I ran a similar simulation with Gearotics minus the planetary carrier (as Gearotics cant do that kinda thang) and the gear motion was as I expected. The ring gear rotated freely leaving the planet gears in place but still roting about their own axis.
Anyone know why this would happen?
Thanks
So I'm trying to design a planetary transmission clutch. The video of the simulation is here http://www.youtube.com/watch?v=LNwmsSHFuPk
The sun gear is the driven gear and the notched plate is the planet carrier (ie not attached to the sun or ring gear directly). now I was expecting the ring gear to rotate freely leaving the planet gears & carrier in place until it hit the stop. But as you can see SW has other plans!
I ran a similar simulation with Gearotics minus the planetary carrier (as Gearotics cant do that kinda thang) and the gear motion was as I expected. The ring gear rotated freely leaving the planet gears in place but still roting about their own axis.
Anyone know why this would happen?
Thanks






RE: Planetary gear simulation unrealistic!!
RE: Planetary gear simulation unrealistic!!
Dan
www.eltronresearch.com
Dan's Blog
RE: Planetary gear simulation unrealistic!!
Is anyone going to challenge this statement?
The reason I ask is we have plans to move more towards SWx solutions, but we are currently using an Autodesk solution that works very well in this area (Autodesk Inventor - Dynamic Simulation). I don't want to spend a lot of time learning a tool that, "pretty much falls down" in this area.
RE: Planetary gear simulation unrealistic!!
http://www.youtube.com/watch?v=G03ExLj6alI
http://www.youtube.com/watch?v=Q7-dOJoKs90
http://www.youtube.com/watch?v=kbUfitBQZW8
http://www.youtube.com/watch?v=ZwdF96B55lY
RE: Planetary gear simulation unrealistic!!
RE: Planetary gear simulation unrealistic!!
As far as the mechanism sim in SW is concerned. It does have some contact issues especially when contacts are complex curves at acute angles.