Code_Aster ®
Version
6.4
Titrate:
Modelings 3D and PLAN Acoustique
Date:
24/06/03
Author (S):
O. Key NICOLAS
:
U3.33.01-D Page
: 1/4
Organization (S): EDF-R & D/AMA
Handbook of Utilization
U3.3- booklet: Finite elements acoustic
Document: U3.33.01
Modelings 3D and PLAN of the phenomenon
ACOUSTIQUE
Summary:
This document describes for modelings 3D and PLAN:
· degrees of freedom carried by the finite elements which support modeling,
· the related meshs supports,
· supported materials and loadings,
· options of calculations for the elementary matrices and the post processing,
· nonlinear possibilities as well as the options of the breaking process if they exist.
Modelings 3D and PLAN (Phénomčne: ACOUSTIQUE) correspond to finite elements acoustic in
formulation pressure (cf [R4.02.01]). Modeling 3D has voluminal meshs supports, modeling
PLAN has plane meshs supports.
Handbook of Utilization
U3.3- booklet: Finite elements acoustic
HT-66/03/002/A
Code_Aster ®
Version
6.4
Titrate:
Modelings 3D and PLAN Acoustique
Date:
24/06/03
Author (S):
O. Key NICOLAS
:
U3.33.01-D Page
: 2/4
1 Discretization
1.1
Degrees of freedom
Finished element
Degrees of freedom (with each node node)
ACOU_… (3D)
PRES: pressure
ACOU_FACE… (3D)
PRES: pressure
ACPL… (PLANE)
PRES: pressure
1.2
Net support of the matrices of rigidity
Modeling Nets Element
finished
Remarks
3D TETRA4
ACOU_TETRA4
TETRA10
ACOU_TETRA10
PENTA6
ACOU_PENTA6
PENTA15 ACOU_PENTA15
HEXA8 ACOU_HEXA8
HEXA20 ACOU_HEXA20
HEXA27 ACOU_HEXA27
PLAN TRIA3
ACPLTR3
TRIA6 ACPLTR6
QUAD4 ACPLQU4
QUAD8 ACPLQU8
QUAD9 ACPLQU9
1.3
Net support of the loadings
Modeling Nets Element
finished
Remarks
3D TRIA3
ACOU_FACE3
TRIA6
ACOU_FACE6
QUAD4
ACOU_FACE4
QUAD8
ACOU_FACE8
QUAD9
ACOU_FACE9
PLAN SEG2
ACPLSE2
SEG3
ACPLSE3
2
Significance of the symbols
·
corresponds to a functionality available
corresponds to a functionality which could exist but not
currently available
Name of
corresponds to test implementing the functionality.
case-test
////
corresponds to a functionality without significance for the element or
asking a major questioning of the code
Handbook of Utilization
U3.3- booklet: Finite elements acoustic
HT-66/03/002/A
Code_Aster ®
Version
6.4
Titrate:
Modelings 3D and PLAN Acoustique
Date:
24/06/03
Author (S):
O. Key NICOLAS
:
U3.33.01-D Page
: 3/4
3 Materials
supported
DEFI_MATERIAU
3D PLAN
Remarks
ELAS
/////
/////
ELAS_FO
/////
/////
ELAS_ORTHO
/////
/////
TRACTION
/////
/////
ECRO_LINE
/////
/////
ECRO_LINE_FO
/////
/////
CHABOCHE
/////
/////
FLUIDE
AHLV100A AHLV100F
speed of sound
complex
THER
/////
/////
THER_FO
/////
/////
THER_ORTHO
/////
/////
META_REFR
/////
/////
4 Loadings
supported
AFFE_CHAR_ACOU
3D PLAN
Remarks
PRES_IMPO
· ·
VITE_FACE
AHLV100A AHLV100F
IMPE_FACE
AHLV100A AHLV100F
LIAISON_UNIF
· ·
5 Possibilities
non-linear
None.
6
Elementary calculations of matrices
OPTIONS
3D PLAN
Remarks
“RIGI_MECA”/////
/////
“RIGI_GEOM”/////
/////
“RIGI_ROTA”/////
/////
“RIGI_MECA_HYST”/////
/////
“MASS_MECA”/////
/////
“MASS_MECA_DIAG”/////
/////
“AMOR_MECA”/////
/////
“IMPE_MECA”/////
/////
“RIGI_THER”/////
/////
“MASS_THER”/////
/////
“RIGI_ACOU”
AHLV100A AHLV100F
“MASS_ACOU”
AHLV100A AHLV100F
“AMOR_ACOU”
AHLV100A AHLV100F
MODE_FOURIER//////////
Handbook of Utilization
U3.3- booklet: Finite elements acoustic
HT-66/03/002/A
Code_Aster ®
Version
6.4
Titrate:
Modelings 3D and PLAN Acoustique
Date:
24/06/03
Author (S):
O. Key NICOLAS
:
U3.33.01-D Page
: 4/4
7
Postprocessing of calculation
7.1 Option
CALC_ELEM
3D PLAN
Remarks
“PRES_ELNO_DBEL”
AHLV100A ·
“PRES_ELNO_REEL”
AHLV100A ·
“PRES_ELNO_IMAG”
AHLV100A ·
“INTE_ELNO_ACTI”
AHLV100A ·
“INTE_ELNO_REAC”
AHLV100A ·
7.2 Option
CALC_CHAM_ELEM
3D PLAN
Remarks
“PRES_ELNO_DBEL”
AHLV100A ·
“PRES_ELNO_REEL”
AHLV100A ·
“PRES_ELNO_IMAG”
AHLV100A ·
7.3 Option
CALC_NO
3D PLAN
Remarks
“PRES_NOEU_DBEL”
· ·
“PRES_NOEU_REEL”
· ·
“PRES_NOEU_IMAG”
· ·
“INTE_NOEU_ACTI”
· ·
“INTE_NOEU_REAC”
· ·
Handbook of Utilization
U3.3- booklet: Finite elements acoustic
HT-66/03/002/A
Outline document