.. _V8.01.104:

**v8.01.104** FDLV104 - Mass calculation added on a 3D generalized model
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**Summary:**

This test in the field of fluids (fluid/structure coupling) validates the calculation of mass added to a generalized 3D model, namely two spheres coupled by an incompressible fluid.

By a modal analysis carried out by dynamic substructuring, the coupled modes of the two spheres are obtained because of the presence of the fluid. The natural frequencies are compared to those determined by a direct calculation.

The natural frequencies are obtained to within 3%.


.. 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