7. E modeling#

7.1. Characteristics of modeling#

Elements MECA_PENTA15, MEFL_PENTA15, MESF_TRIA6

_images/1000000000000120000000D01524E766509A4741.png

Boundary conditions:

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

In all the nodes of the piston

7.2. Characteristics of the mesh#

Number of nodes:

331

Number of meshes and types:

84 PENTA15, 28 TRIA6

7.3. Tested values#

Frequency

( \(\mathrm{Hz}\) )

Reference

Aster

Error (%)

13.8285

13.8277

-0.006

7.4. 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.