.. _V2.03.127:

**v2.03.127** SDLS127 - Harmonic response of a viscoelastic sandwich plate embedded on one edge
=====================================================================================================

**Summary:**

The objective of this test is to validate the calculation of the harmonic response of a structure comprising both standard elastic materials and viscoelastic materials whose properties depend on frequency.

Three models are carried out:


* Modeling A: direct calculation on a physical basis, by calculating the assembled matrices frequency by frequency; this modeling serves as a reference;


* B modeling: preliminary calculation of real eigenmodes, then harmonic calculation on a modal basis;


* C modeling: prior calculation of improved real eigenmodes ("beta-modes"), then harmonic calculation on a modal basis.




.. toctree::
    :hidden:

    self

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

    Probl_me_de_r_f_rence
    Solution_de_r_f_rence
    Mod_lisation_A
    Mod_lisation_B
    Mod_lisation_C
    Synth_se_des_r_sultats