Modeling A
==============


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

Modeling with elements of BARRE and CABLE.


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

The mesh contains:


* 2 elements of type BARRE.


* 60 elements of type CABLE. (15 elements per cable).


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

The value of the 1st natural vibration frequency of the cables is tested. As the 4 cables have the same voltage, there are therefore multiple vibration modes. Six multiple modes are tested, for each step.


.. csv-table::

    "**No**", "**Reference Type**", "**Mode**", "**Reference Value**", "**Tolerance**"
    "10", "'ANALYTIQUE'", "Same value for the first 6 multiple modes", ":math:`62.732270963\mathit{Hz}` "," :math:`0.5\text{\%}`"
    "", "'NON_REGRESSION'", "1"," :math:`62.7962\mathit{Hz}` ", "default"
    "", "'NON_REGRESSION'", "2"," :math:`62.9083\mathit{Hz}` ", "default"
    "", "'NON_REGRESSION'", "3"," :math:`62.9458\mathit{Hz}` ", "default"
    "", "'NON_REGRESSION'", "4"," :math:`62.9626\mathit{Hz}` ", "default"
    "", "'NON_REGRESSION'", "5"," :math:`62.9626\mathit{Hz}` ", "defect"
    "", "'NON_REGRESSION'", "6"," :math:`62.9626\mathit{Hz}` ", "defect"
    "20", "'ANALYTIQUE'", "Same value for the first 6 multiple modes", ":math:`88.728308982\mathit{Hz}` "," :math:`0.5\text{\%}`"
    "", "'NON_REGRESSION'", "1"," :math:`88.5701\mathit{Hz}` ", "default"
    "", "'NON_REGRESSION'", "2"," :math:`88.8995\mathit{Hz}` ", "default"
    "", "'NON_REGRESSION'", "3"," :math:`89.0065\mathit{Hz}` ", "default"
    "", "'NON_REGRESSION'", "4"," :math:`89.0541\mathit{Hz}` ", "default"
    "", "'NON_REGRESSION'", "5"," :math:`89.0541\mathit{Hz}` ", "defect"
    "", "'NON_REGRESSION'", "6"," :math:`89.0541\mathit{Hz}` ", "defect"



notes
---------

The calculation is carried out with the operator STAT_NON_LINE, then the operators CALC_MATR_ELEM, ASSE_MATRICE and COMB_MATR_ASSE for assembling the matrices. The calculation of the frequencies and modes of vibration is carried out with the operator CALC_MODES.