16. N modeling#

16.1. Characteristics of modeling#

Elements MEAXTR3, MEAXFLTR3, MEAXFSSE2

_images/1000000000000208000000B4E54ED7E737688BBF.png

Boundary conditions:

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

In all the piston nodes

16.2. Characteristics of the mesh#

Number of knots:

21

Number of meshes and types:

24 TRIA6, 4 SEG3

16.3. Tested values#

Frequency

( \(\mathit{Hz}\) )

Reference

Aster

Error (%)

13.8285

13.8277

-0.006

16.4. notes#

Calculations made 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.