B modeling
==============


Characteristics of modeling
------------------------

We use modeling COQUE_SOLIDE.


.. image:: images/10000201000001D5000001F401513BA386006E46.png
    :width: 3.1846in
    :height: 3.3953in


.. _RefImage_10000201000001D5000001F401513BA386006E46.png:


Characteristics of the mesh and the finite element model
--------------------------------------------------------

The mesh consists of 3720 knots and 1800 HEXA9sur hexahedral meshes, which are assigned COQUE_SOLIDE elements.


Tested sizes and results
------------------------------

Natural frequencies :math:`(\mathrm{Hz})`

Only frequencies and modes with an effective mass greater than :math:`\text{0.1\%}` are shown in the table below.


.. csv-table::

    "**Mode Number**", "**Ref**
    **(SAMCEF)**", "**Gap** **between SAMCEF and** **Code_Aster** **in %**"
    "1", "2.80058"," 0.23%"
    "2", "2.80058"," 0.23%"
    "3", "5.92549"," 0.14%"
    "4", "5.92549"," 0.14%"


These four modes make it possible to obtain a good representation of the mass in the direction of excitation since the cumulative effective masses in the directions :math:`x` and :math:`y` amount to :math:`\text{83.2\%}`.