Operands
=========




Operand BASE
-------------


.. code-block:: text

    ♦ BASE = low

A concept of the mode_meca type that contains the vectors defining the projection subspace.




Operand NUME_DDL_GENE
----------------------


.. code-block:: text

    ♦ NUME_DDL_GENE = nu_gene

Generalized numbering based on BA.




Operand FREQ_EXTR
------------------


.. code-block:: text

.. _BM:


    ♦ FREQ_EXTR = freq

Real value of the extraction frequency of seismic forces from the ground.




Operand UNITE_RESU_FORC
------------------------

♦ UNITE_RESU_FORC = uresfor

Logical unit of the ground seismic forces file calculated previously by MISS3D with CALC_MISS in post-processing and data as input to the study profile.




Operand NOM_RESU_FORC
----------------------


.. code-block:: text

    ♦ NOM_RESU_FORC = nresfor

Local name in the study project of MISS3D from the file of ground seismic forces previously calculated by MISS3D with CALC_MISS in post-processing. This occurs, for example, in the case of point sources.




Operand ISSF
-------------


.. code-block:: text

    ♦ ISSF =/'NON',/'OUI',

If 'OUI', consideration of the format specific to studies by MISS3D in soil-structure-fluid interaction in accordance with this same keyword in CALC_MISS.




Operands NOM_CMP/NUME_CHAR
-----------------------------


.. code-block:: text

    ♦/NOM_CMP =/'DX',/'DY',
/'DZ',

Name of the component corresponding to an incident seismic field direction.


.. code-block:: text
/NUME_CHAR = numec

In the case of inclined waves or point sources where NOM_RESU_FORC has been entered with a local extension name *'.f'*, the seismic field is defined by a load number between 1 and 3 for inclined seismic forces and necessarily equal to 1 for a point source.




Operand NOM_CHAM
-----------------


.. code-block:: text

    ♦ NOM_CHAM =/'DEPL',/'VITE',
/'ACCE',

Field name giving the nature of the imposed unit incident seismic field (for example 'ACCE' if unit acceleration imposed).