Summary of results
======================


* Shell modeling DKT, restricted here to modes with the 3 symmetries with respect to planes :math:`\text{x = 0}`, :math:`\text{y = 0}`, :math:`z=0`, provides natural frequencies with an error of less than :math:`\text{0.4\%}` on the first 20 modes.


* The :math:`\mathrm{2D}` axisymmetric continuous medium modeling provides the natural frequencies with an error of less than :math:`\text{2\%}`.


* Modeling COQUE_AXIS (quadratic isoparametric elements) provides the natural frequencies with an error of less than :math:`\text{0.2\%}` on the first 5 modes (spatial discretization identical to the axisymmetric :math:`\mathrm{2D}` mesh trace).


* Degenerate modeling COQUE_3D (thick shell elements MEC3QU9H, MEC3TR7H) provide natural frequencies with an error of less than :math:`\text{1.2\%}` on the first 10 modes.