Resolving Shaft Forces
Resolving Shaft Forces
(OP)
Hi all,
Any help would be much appreciated.
I ran a quick FEA with Catia's in built analyser on a gear. It spat out some numbers that I would like to check by hand.
Please view attached diagram.
The numbers on the diagram are what the computer gave me, but I cannot seem to verify them by hand, perhaps they are wrong?
Thanks for your time.
Any help would be much appreciated.
I ran a quick FEA with Catia's in built analyser on a gear. It spat out some numbers that I would like to check by hand.
Please view attached diagram.
The numbers on the diagram are what the computer gave me, but I cannot seem to verify them by hand, perhaps they are wrong?
Thanks for your time.





RE: Resolving Shaft Forces
1287 (up) at R1
758 (up) at R2
RE: Resolving Shaft Forces
Heckler![[americanflag] americanflag](https://www.tipmaster.com/images/americanflag.gif)
Sr. Mechanical Engineer
SWx 2007 SP 4.0 & Pro/E 2001
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This post contains no political overtones or undertones for that matter and in no way represents the poster's political agenda.
RE: Resolving Shaft Forces
Perhaps you could clarify one or two things first:-
1/ is the vertical force 2045N in addition to the vertical
component from the horizontal force 10147?
2/ Reaction R3 is shown on the sketch as two red vertical
lines, however I assume the R3 in the table on the sketch
which given as 10147N, is the horizontal force shown in
diagram.
I couldn't get any numbers to balance equilibrum like those
you have posted.
I do agree with sreid if you just take the vertical load of 2045N then the reactions are 758 and 1258N upwards.
regards
desertfox
RE: Resolving Shaft Forces
1)Tangential force: This force acts on the surface of the gear and at the meshing point. This force is always against the direction of rotation of the gear
2)Separating force: This force acts from the meshing point towards the center of the gear as represented by you.
3)Axial force: This force is mainly due to the angle of the gear teeth which is also represented by you.
To get the actual reactions at the supports all these forces need to be considered. Now each of these force act on different axis.
Tangential - Z axis
Seperating - Y axis
Axial - X axis
You need to consider a plane viz, XY or XZ and solve the equations to get the reactions for the gear forces.
Hence use the tangential force for the gear and you would have your results.
RE: Resolving Shaft Forces
As such it is about getting bearing loads but calculating the gear loading is one step.
Good luck.