Benchmark solution
=====================


Calculation method used for the reference solution
--------------------------------------------------------


* experimental measurements,


* numerical methods Finite Differences or Finite Elements.

:math:`I\mathrm{=}{I}_{\mathit{eff}}\sqrt{2}(\mathrm{cos}(\omega t+\phi )\mathrm{-}{e}^{\mathrm{-}t\mathrm{/}\tau }\mathrm{cos}\phi )`


Uncertainty about the solution
---------------------------

The dispersion of the calculated values is considered to be between :math:`5\text{\%}` and :math:`10\text{\%}`.


Bibliographical references
---------------------------


1. G. DEVESA: "Calculation of electrodynamic forces on rigid conductor structures of electrical substations: implementation in the *Aster* mechanical calculation code and Validation". Note HM-72/5904