Mesh Part Transformation
Open the ¡°FEM Surface¡± workbench.
a.  Click Advanced Meshing Tools icon.   
 
b.  Select Static Analysis.
 
Open ¡°FMD_Engrenage.CATAnalysis¡±
Click ¡°Tetrahedron filler¡± icon   
 
c.  Select ¡°Advance surface Mesh.1¡± in the tree.
d.  Select ¡°Rotation Mesh.1¡± in the tree.
e.  Select ¡°Advance surface Mesh.2¡± in the tree.

 
Select the tetrahedron filler mesh for the meshpart
Select the « Line.1 » feature for the axis. Put the geometry in « show » mode if the axis is hidden
In Angle field, display the contextual menu and choose Edit formula: 
Rotation angle equals Rotation Mesh.1 angle, Enter the following formula: