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


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

**Discreet translational stiffness element**


.. image:: images/10000908000020590000064EE6210B3528745396.svg
    :width: 417
    :height: 81


.. _RefImage_10000908000020590000064EE6210B3528745396.svg:

Characteristics of the elements


.. csv-table::

    "DISCRET:", "with nodal masses", "M_T_D_N"
    "", "and stiffness matrices", "K_T_D_L"
    "", "and damping matrices", "A_T_D_L"


Boundary conditions:


.. csv-table::

    "in all nodes", "DDL_IMPO =_F", "(TOUT =' OUI 'DY= 0., DZ= 0.)"
    "at the end nodes", "", "(GROUP_NO = AB DX= 0.)"


Node names:


.. csv-table::

    "Point :math:`A` = :math:`\mathrm{N1}` "," :math:`{P}_{1}=\mathrm{N2}`"
    "Point :math:`B` = :math:`\mathrm{N10}` "," :math:`{P}_{2}=\mathrm{N3}`"
    "", ":math:`{P}_{8}=\mathrm{N9}`"



.. csv-table::

    "Modal recombination with all modes (8)", "no time used", ":math:`\mathrm{dt}=1.E–3s`"
    "", "EULER diagram ", ""



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


.. csv-table::

    "Number of knots:", "10"
    "Number of meshes and types:", "9 SEG2"



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


.. csv-table::

    "**Time (** :math:`s` **)**", "**Reference**"
    "0.09", "3.97 E-5"
    "0.18", "5.10 E-6"
    "0.27", "3.77 E-5"
    "0.36", "7.30 E-6"
    "0.45", "3.59 E-5"
    "0.54", "8.81 E-6"
    "0.63", "3.47 E-5"
    "0.72", "1.01 E-5"
    "0.81", "3.36 E-5"
    "0.91", "1.11 E-5"
    "0.99", "3.27 E-5"



notes
---------

**Contents of the results file:** trips.