4. Operands#

4.1. Concepts created by the order#

This command creates a table-like concept as output. It is also possible to output a second table containing the signals corresponding to the dynamic load (input) calculated using the measured signals (output).

The first concept produced regardless of how the user uses the macro command is a table that contains the data from the transfer functions matrix arranged as follows:

  • The first column corresponds to frequencies (FREQ);

  • The following correspond to the components of the matrix arranged in order by rows \({H}_{\mathrm{xx}}\), \({H}_{\mathrm{xy}}\),,, \({H}_{\mathrm{xz}}\), \({H}_{\mathrm{yx}}\), \({H}_{\mathrm{yy}}\), \({H}_{\mathrm{yz}}\), \({H}_{\mathrm{zx}}\), \({H}_{\mathrm{zy}}\), and \({H}_{\mathrm{zz}}\). In the 2D case, we will have \({H}_{\mathrm{xx}}\), \({H}_{\mathrm{xy}}\),, \({H}_{\mathrm{yx}}\) and \({H}_{\mathrm{yy}}\).

\(H(\omega )=(\begin{array}{ccc}{H}_{\mathrm{xx}}& {H}_{\mathrm{xy}}& {H}_{\mathrm{xz}}\\ {H}_{\mathrm{yx}}& {H}_{\mathrm{yy}}& {H}_{\mathrm{yz}}\\ {H}_{\mathrm{zx}}& {H}_{\mathrm{zy}}& {H}_{\mathrm{zz}}\end{array})\)

4.2. Operands RESULTAT_X, RESULTAT_Y, and RESULTAT_Z#

♦ RESULTAT_X = resu_x

Name of the typeresult concept for which the linear dynamic calculation was carried out with a unidirectional solicitation following \(x\).

♦ RESULTAT_Y = resu_y

Name of the typeresult concept for which the linear dynamic calculation was carried out with a unidirectional solicitation following \(y\).

◊ RESULTAT_Z = resu_z

Name of the typeresult concept for which the linear dynamic calculation was carried out with a unidirectional solicitation following \(z\).

Notes:

Only result structures of type dyna_trans, dyna_trans, dyna_harmo, tran_gene, and harm_gene can be specified in these operands.

The calculations produced by the dynamics operators and which are to be entered in the operands RESULTAT_X, * RESULTAT_Yet RESULTAT_Zdoivent be of the same type: dyna_trans, or dyna_harmo or dyna_harmo or tran_geneou harm_gene.

4.3. Operand NOM_CHAM#

♦ NOM_CHAM = name

Symbolic name of the field that we want to extract from linear dynamic calculations carried out beforehand by the user and entered in the operands RESULTAT_X, RESULTAT_Y and RESULTAT_Z.

Possible field names are: “DEPL”, “VITE”, and “ACCE”.

Note:

The various functions entered by the user such as the training functions entered in the keyword ENTRAINEMENTou although the measured functions entered in the keyword SIGNALdevront be of the same type as **nomcha.*

4.4. Operand REPERE#

♦ REPERE = /' ABSOLU '

/” RELATIF “

This mandatory operand allows you to specify the type of response calculated by the dynamic operators. If the coordinate system is RELATIF (for a linear dynamic calculation in relative motion), then the user must enter the training signal in the ENTRAINEMENT keyword (see paragraph 4.5).

4.5. Keyword factor ENTRAINEMENT#

The keyword factor ENTRAINEMENT makes it possible to specify the drive stresses that were used to perform the various linear dynamic calculations in relative motion.

Note:

The various training functions specified in the keyword ENTRAINEMENTdevront be of the same type as namcha (“DEPL”, “VITE”, or “ACCE”) .

4.5.1. DX, DY, and DZ operands#

♦ DX = entr_x


This operand makes it possible to specify the unidirectional stress (in the direction :math:`x`) used for the first dynamic calculation.


♦ DY = entr_y


This operand makes it possible to specify the unidirectional stress (in the direction :math:`y`) used for the second dynamic calculation.

◊ DZ = enter_z


This operand makes it possible to specify the unidirectional stress (in the direction :math:`z`) used for the third dynamic calculation.

4.6. Key words factor ENTREE and SORTIE#

4.6.1. Operand GROUP_NO#

♦ GROUP_NO = big

The mandatory factor keywords ENTREE and SORTIE are used to enter the name of a group of nodes (grno, containing a single node) to which the extraction of the field “DEPL” or “VITE” or “ACCE” relates.

_images/10000201000001DE0000007D177D3B57397AF4C6.png

4.7. Keyword factor SIGNAL#

This factor keyword (optional) makes it possible to determine the dynamic load (input) that led to the measured signals (output) entered by the user in the keyword factor SIGNAL.

4.7.1. Operands MESURE_X, MESURE_Y, and MESURE_Z#

♦ MESURE_X = f_x

This operand makes it possible to fill in the signal measured in the direction \(x\).

♦ MESURE_Y = f_y

This operand makes it possible to fill in the signal measured in the direction \(y\).

◊ MESURE_Z = f_z

This operand makes it possible to fill in the signal measured in the direction :math:`z`.

Note:

The signals must be of the same type as **noun and must be discretized on the same frequency or time list.*

4.7.2. Operand TYPE_RESU#

♦ TYPE_RESU = /' TEMPOREL ',

/” HARMONIQUE “

This operand allows you to enter the type of results desired at the output of the table.

4.7.3. Operand TABLE_RESU#

♦ TABLE_RESU = table_name

This operand makes it possible to fill in the name of the table in which the calculated signals will appear knowing the measured signals.

The table will be composed of several columns arranged as such:

If TYPE_RESU = “TEMPOREL”:

INST, FX, FY, FZ

If TYPE_RESU = “HARMONIQUE”:

FREQ, Re_FX, Im_FX, Re_fy, Im_fy, Re_FZ, Im_FZ, Im_FZ