.. _V2.03.122:

**v2.03.122** SDLS122 - Modal analysis of a plate supported on its corners — Sub-structuring
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**Summary:**

The objective of this test case is to validate command CALC_CORR_SSD and to present an example of typical use. Here we compare the first 5 natural frequencies of a rectangular steel plate of :math:`\mathrm{1m}\mathrm{\times }\mathrm{2m}\mathrm{\times }\mathrm{1cm}` supported on its 4 corners. To compare, we consider on the one hand a complete mesh of the rectangular plate, and on the other hand of two square meshes, of different fineness. A first generalized model is constructed by a substructuring method, then the quality of the results provided by this model is evaluated using the command CALC_CORR_SSD. The calculated enrichment terms are then used to build a new generalized model, and to verify the relevance of the enrichment.


.. toctree::
    :hidden:

    self

.. toctree::
    :maxdepth: 2
    :numbered:

    Probl_me_de_r_f_rence
    Solution_de_r_f_rence
    Mod_lisation_A
    Synth_se_des_r_sultats