.. _V2.01.107: **v2.01.107** SDLD107 - Minimization of an error-type energy functional in relation to behavior in structural dynamics ============================================================================================================================================ **Summary:** The field of application of this test concerns the dynamics of structures. It makes it possible to validate the calculation operator CALC_ERC_DYN [:ref:`u4.53.41 `] which makes it possible to obtain the solution fields of a problem of minimizing an error-type energy functional in relation to behavior (ERC) under a modal formulation. The aim is to solve the ERC problem for a system composed of 3 masses and 4 springs, embedded at its ends in free vibration. The springs and the masses are modelled by elements of the type 'DIS_T'. The verified results for the case studied were obtained semi-analytically. Its resolution, which acts as a reference, was carried out using the Matlab software. .. 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