.. _R5.05.10:

**r5.05.10** Dynamic analysis of structures with viscoelastic materials having frequency dependent properties
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**Overview:**

This reference document tackles the way how advanced capabilities are introduced in*Code_Aster* to take into account frequency dependent properties of viscoelastic materials. Computing of harmonic response and modes of vibration (real or complex) is addressed. Having frequency dependent modes is a step forward for the modal projection method and for model updating with an experimental modal basis as a reference. An iterative method is used in order to compute frequency dependent modes.




.. toctree::
    :hidden:

    self

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

    Introduction
    Finite_element_analysis
    Implementation_in_Code_Aster
    References