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

A relatively good agreement is obtained between the solution calculated with *Code_Aster* and the solution calculated by HERCULE:


* Frequencies: the differences observed for the first 18 frequencies are small, less than :math:`\text{0.2\%}`.


* Displacements: the observed differences are less than :math:`\text{1\%}` if we use a quadratic combination of the directions of the excitations, and less than :math:`\text{2 \%}` if we use a Newmark combination of the directions of the excitations.


* Efforts: the differences observed are less than :math:`\text{2\%}`.