example
=====

The following command file calculates, by two substructuring methods, the flexure modes of a plate embedded in its center:


* cyclic method,


* classical method.

Then with the command DEFI_SQUELETTE, a visualization mesh is created (**skeleton mesh**). After expressing the results in physical space, the visualization mesh and results are added to a file RESULTAT in IDEAS format.


Command file
--------------------


.. code-block:: text

    #

    # CALCUL PAR SOUS - STRUCTURATION CYCLIQUE

    #

    # CALCUL DES MODES PROPRES CYCLIQUES

    #

    mod_cy = MODE_ITER_CYCL (BASE_MODALE = bamo,

    NB_MODE = 5, NB_SECTEUR = 4,

    LIAISON = _F (DROITE =' DROITE ', GAUCHE =' GAUCHE'),

    CALCUL = _F (TOUT_DIAM =' OUI ', NMAX_FREQ = 2),

    INFO = 1)

    #

    CREATION FROM MAILLAGE FROM CALCUL

    #

    quel1 = DEFI_SQUELETTE (MODE_CYCL = mod_cy,

    SECTEUR = _F (GROUP_MA = 'CALCUL'))

    #

    CREATION FROM MAILLAGE FROM VISUALISATION

    #

    quel2 = DEFI_SQUELETTE (MODE_CYCL = mod_cy,

    SECTEUR = _F (GROUP_MA = 'VISUAL'))

    #

    # RESTITUTION DES RESULTATS SUR LES MAILLAGES SQUELETTES

    #

    modgl1 = REST_SOUS_STRUC (RESU_GENE = mod_cy, SQUELETTE = quel1)

    modgl2 = REST_SOUS_STRUC (RESU_GENE = mod_cy, SQUELETTE = quel2)

    #

    ...


    # CALCUL PAR SOUS - STRUCTURATION CLASSIQUE

    #

    CALCUL FROM MACRO - ELEMENT

    #

    macele = MACR_ELEM_DYNA (BASE_MODALE = bamo)

    #

    CALCUL FROM MODELE GENERALISE

    #

    fashion = DEFI_MODELE_GENE (

    SOUS_STRUC =_F (NOM =' CARRE1 ',

    MACR_ELEM_DYNA = macele),

    SOUS_STRUC =_F (NOM =' CARRE2 ',

    MACR_ELEM_DYNA = Macele,

    ANGL_NAUT =( 90., 0., 0. )),

    SOUS_STRUC =( NOM =' CARRE3 ',

    MACR_ELEM_DYNA = Macele,

    ANGL_NAUT =( 180.,0.,0. )),

    SOUS_STRUC =( NOM =' CARRE4 ',

    MACR_ELEM_DYNA = Macele,

    ANGL_NAUT =( 270., 0., 0. )),

    LIAISON =_F (SOUS_STRUC_1 =' CARRE1 ',

    SOUS_STRUC_2 =' CARRE2 ',

    INTERFACE_1 =' GAUCHE ',

    INTERFACE_2 =' DROITE '),

    LIAISON =_F (SOUS_STRUC_1 =' CARRE2 ',

    SOUS_STRUC_2 =' CARRE3 ',

    INTERFACE_1 =' GAUCHE ',

    INTERFACE_2 =' DROITE '),

    LIAISON =_F (SOUS_STRUC_1 =' CARRE3 ',

    SOUS_STRUC_2 =' CARRE4 ',

    INTERFACE_1 =' GAUCHE ',

    INTERFACE_2 =' DROITE '),

    LIAISON =_F (SOUS_STRUC_1 =' CARRE4 ',

    SOUS_STRUC_2 =' CARRE1 ',

    INTERFACE_1 =' GAUCHE ',

    INTERFACE_2 =' DROITE '))

    #

    ...


    CREATION FROM MAILLAGE FROM VISUALISATION


    squel = DEFI_SQUELETTE (MODELE_GENE = MODEGE

    SOUS_STRUC =_F (NOM =' CARRE1 ',

    GROUP_MA = 'VISUAL'),

    SOUS_STRUC =_F (NOM =' CARRE2 ',

    GROUP_MA = 'VISUAL'),

    SOUS_STRUC =_F (NOM =' CARRE3 ',

    GROUP_MA = 'VISUAL'),

    SOUS_STRUC =_F (NOM =' CARRE4 ',

    GROUP_MA = 'VISUAL'))

    #

    # RESTITUTION DES RESULTATS SUR THE MAILLAGE SQUELETTE

    #

    modglo = REST_SOUS_STRUC (RESU_GENE = resgen,

    SQUELETTE = what)

    #


Graphic results
--------------------


.. image:: images/100D4D240000314D00001F367215AE98DE96D0EF.svg
    :width: 619
    :height: 386


.. _RefImage_100D4D240000314D00001F367215AE98DE96D0EF.svg:

The calculation meshes and **skeleton** of the embedded plate are presented above with respectively the modal deformations of the second mode.