10. H modeling#

10.1. Characteristics of modeling#

Elements MECA_TETRA4, MEFL_TETRA4, MESF_TRIA3

_images/1000000000000118000000C8939DB54DD4846469.png

Boundary conditions:

In all the knots on the face \(M\)

In all the piston nodes

10.2. Characteristics of the mesh#

Number of knots:

69

Number of meshes and types:

173 TETRA4, 16 TRIA3

10.3. Tested values#

Frequency

( \(\mathrm{Hz}\) )

Reference

Aster

Error (%)

13.8285

13.8277

-0.006

10.4. notes#

Mode calculations performed by:

CALC_MODES

OPTION =” AJUSTE “, CALC_FREQ =_F (FREQ =( 10.,20.))

The analytical solution of the first eigenvector is not known.

Contents of the results file:

Value of the first natural vibration frequency of the coupled system.