In many engineering applications engineers have to calculate how gears are working under stress. GGGears is a free software that does exactly this by means of the finite element package GETFEM++ and the mesh generation package GMSH, both also free software. It supports both 2D and 3D mesh generation and solver. The user does not need to know anything about finite elements or mesh generation; he/she just need to insert the geometrical data of the gear systmem.
The installation of the software can be easily done in Ubuntu by first adding the repository
sudo add-apt-repository ppa:gggears/main
sudo apt-get update
and then installing gggears and its dependencies by
sudo apt-get install gggears
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