13. K modeling#

13.1. Characteristics of modeling#

Elements MEDPTR3, MEFLT3, MEFSSE2

_images/1000000000000208000000B4E54ED7E737688BBF.png

Boundary conditions:

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

In all the nodes of the piston

13.2. Characteristics of the mesh#

Number of knots:

65

Number of meshes and types:

24 TRIA3, 4 SEG2

13.3. Tested values#

Frequency

( \(\mathrm{Hz}\) )

Reference

Aster

Error (%)

13.8285

13.8277

-0.006

13.4. 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.