4. B modeling#

4.1. Characteristics of modeling#

Continuous element such as a tensile beam

_images/Object_9.svg

Characteristics of the elements

DISCRET:

nodal masses

M_T_D_N

POUTRE:

stiffness matrices

POU_D_T

Boundary conditions:

in all nodes

DDL_IMPO:

(TOUT: “OUI” DY: 0., DZ: 0.)

at the end node \(A\)

(GROUP_NO: A DX: 0.)

Node names:

Point \(A\mathrm{=}\mathit{N1}\)

Point \(B\mathrm{=}\mathit{N2}\)

Point \(C\mathrm{=}\mathit{N3}\)

4.2. Characteristics of the mesh#

Number of knots: 3

Number of meshes and types: 2 SEG2

4.3. Tested sizes and results#

Real and imaginary parts of component \(\mathit{DX}\) of the displacement of point \(C\).

Frequency

Reference

Aster

% Difference

0.00

7.1075E-03 —3.5360E-04

7.1074964639321E-03 —3.5360678925035E-04

1.08E-04

1.08E-04

3.36870E+00

9.388216E-03 —7.31196E-04

9.3882649899583E-03 —7.3120610001073E-04

5.31E-04

5.31E-04

6.48480E+00

—5.0269E-03 —7.07103E-02

—5.0349198344064E-03 —7.0708581052416E-02

0.012

8.00060E+00

—9.54931E-03 —2.2154E-03

—9.5490053525137E-03 —2.2153458282190E-03

0.003

1.18746E+01

—4.23259E-05 —3.57193E-04

—4.2266734408325E-05 —3.5719325443817E-04

0.016

1.34747E+01

2.35524E-03 —5.01765E-04

2.3552527130123E-03 —5.0176685846530E-04

5.34E-04

5.34E-04

1.55802E+01

—1.6395374E-02 —6.871471E-02

—1.6420641488152E-02 —6.8704047854161E-02

0.039

2.10543E+01

—1.88977E-03 —5.53314E-06

—1.8897660707219E-03 —5.5328629109043E-06

2.08E-04

2.08E-04

4.4. notes#

Contents of the results file:

The values of the displacement of component \(\mathit{DX}\) from point \(C\) for all frequencies from \(0\) to \(2.10543E+\mathrm{01Hz}\) in steps of \(3.3687\).