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


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

No reference solutions. The values tested for non-regression are those obtained with version 3.02.17.


Benchmark results
----------------------

Power spectral density of the pressure at the node at the right end of the tube, at frequencies :math:`\mathrm{10,}\mathrm{12,}\mathrm{14,}\mathrm{36,}\mathrm{38,}40\mathrm{Hz}`. These frequencies are close to the two natural frequencies taken into account (:math:`12.38` and :math:`37.36\mathrm{Hz}`).


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


1. C. DUVAL "Dynamic response under random excitations in *Code_Aster*: theoretical principles and examples of use" - Note HP-61/92.148