5. C modeling#

5.1. Characteristics of modeling#

Elements MEAXQU4, MEAXFLQ4, MEAXFSS2

_images/100017F80000263E000011ACFB2932AB9A465335.svg

Boundary conditions:

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

In all the nodes of the piston

Point \(M1\mathrm{:}N019\), \(M2\mathrm{:}N020\), \(M3\mathrm{:}N021\), \(A\mathrm{:}N01\)

5.2. Characteristics of the mesh#

Number of knots:

21

Number of meshes and types:

12 QUAD4, 4 SEG2

5.3. Tested values#

Frequency

( \(\mathit{Hz}\) )

Reference

Aster

Error (%)

13.8285

13.8277

< 0.01

5.4. notes#

Calculations made by:

CALC_MODES

OPTION =” BANDE “, CALC_FREQ =_F (FREQ =( 5.,100.))

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.