When analyzing complex gear systems, boundary conditions must be modeled as closely as possible.
By coupling FEM structures with the analytical calculation model, it is possible to consider the influence of the gearbox casing, planet carrier, and wheel bodies on the shaft-bearing system and the load distribution across the facewidth in mesh.
Steps for integrating CAD bodies as FE structures
FE structures are coupled with the analytical calculation model in the FVA-Workbench in 3 steps, with the help of an interactive assistant.
First, the casing must be positioned relative to the gearbox. The FVA-Workbench then automatically detects the coupling nodes of the bearing seats. Finally, the nodes for defining the environment (foundation) can be selected.
Internal meshing of CAD bodies and importing existing meshes
In addition to FE meshes, CAD bodies can also be imported and meshed in the FVA-Workbench. A user-friendly assistant provides support during the meshing process through automation, simple operation, and interactive guidance.
Many small bores in a model can hinder successful FEM meshing. Therefore, the FEM mesher can automatically remove bores from the model. This is particularly useful for small bores, as these do not affect the rigidity of the model.
The meshing size can be adjusted. After successful meshing, the assistant notifies the user whether the quality of the mesh meets the requirements.
To make the workflow particularly efficient, many different native CAD formats can be imported.