.. _V5.01.120:

**v5.01.120** SDND120 - Transient response of an anti-seismic device
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**Summary**

An anti-seismic device was tested on a vibrating table. The objective of this test case is to reproduce this test numerically. The device is modelled by two non-damped mass-spring systems, separated by a non-linearity of the anti-seismic device type.

We test the discrete element in traction-compression, the calculation of natural modes, static modes and the calculation of the transient response by non-linear modal recombination of the structure subjected to an accelerogram. The nonlinearity is of type ANTI_SISM.

The reference result is a MATLAB program.

The results obtained are in very good agreement with the reference results.

The calculated results are also compared to the forces and movements measured on an experimental device (qualitative comparison only).


.. 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