Loaded Tooth contact analysis (LTCA) for crossed helical gears

RJensch

Hi all,
Is it possible to carry out a loaded tooth contact analysis (LTCA) of a crossed helical gear in Inspire?
My goal is to determine the cyclically changing and recurring transmission error (TE). Depending on the meshing situation, load and material pairing, I have a different tooth deformation under load. This tooth deformation must be determined for each angular position of the drive gear. The tooth deformation results in a small angular deviation of the output gear from the theoretical angular position, which is ultimately my transmission error.

In the literature, there are calculation methods for spur-gear, helical-gear and bevel-gears, but not for crossed helical gears.

I would be grateful for any useful tips on how to proceed.

Adriano_Koga

Hi,

Inspire Motion could calculate the tooth contact using rigid bodies. It is also possible to consider flexibility using flexbodies. It might be a good alternative to try.

https://help.altair.com/inspire/en_us/topics/inspire/motion/flexcontact_c.htm

Inspire Structural is mainly linear, with limited contact conditions. You would probably need to go to OptiStruct full, with SimLab or HyperMesh for a better representation of the non-linear effects.