.. _V2.01.034:

**v2.01.034** SDLD34 — Release with a simple mass/spring
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**Summary:**

A simple oscillator, consisting of a mass connected to a support by a spring, is released starting from the stretched spring. We check that *Code_Aster* correctly calculates the oscillatory response at the initial conditions without external forces.

We test the linear transient calculation functionalities on a physical basis and on a modal basis of the operator DYNA_VIBRA.


.. toctree::
    :hidden:

    self

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

    Probl_me_de_r_f_rence
    Solution_de_r_f_rence
    Mod_lisation_A
    Mod_lisation_B
    Synth_se_des_r_sultats