G modeling
==============


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


.. image:: images/100021CA000069D500002A95C6C2D6A1D406F9A0.svg
    :width: 655
    :height: 263


.. _RefImage_100021CA000069D500002A95C6C2D6A1D406F9A0.svg:


Characteristics of the mesh
----------------------------

Number of knots: 1266

Number of meshes and types: 200 HEXA20


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


.. csv-table::

    "**Identification**", "**Instants**", "**Reference**", "**Aster**", "**% difference**"
    "Frequency
    (mode 4 out of plane)", "", "44.762", "43.862", "—2.009"
    "Frequency
    (modes 5 & 6 off plan)", "", "110.52", "105.953", "—4.132"
    "Frequency
    (mode 7 out of plane)", "", "169.08", "159.749", "—5.518"
    "Frequency
    (Mode 8 in the map)", "", "193.93", "193.93", "193.590", "—0.175"
    "Frequency
    (mode 9 & 10 in the map)", "", "206.64", "199.410
    199.903", "—3.498
    —3.260"



notes
----------


*In*Code_Aster*, the calculated modes are those of rigid bodies: the fourth reference mode is the first mode calculated by*Code_Aster*.


*Appearance of two flexure modes between reference modes 8 and 9: these are modes 6 and 7 of*Code_Aster*.

In the table below we have reported the first 14 natural frequencies found.


.. csv-table::

    "Mode No.", "Frequency (:math:`\mathrm{Hz}`)"
    "1", "43.86"
    "2", "105.95"
    "3", "105.95"
    "4", "159.75"
    "5", "193.59"
    "6", "199.41"
    "7", "199.90"
    "8", "206.16"
    "9", "206.16"
    "10", "219.27"
    "11", "245.07"
    "12", "245.07"
    "13", "249.13"
    "14", "287.75"