3. Operands#
3.1. Operand RESU_GENE#
♦ RESU_GENE = res_gen
/ |
concept of the tran_gene type containing generalized vectors such as displacement, speed and acceleration for various times. |
/ |
concept of the type harm_gene containing the generalized displacement, speed and acceleration vectors of the harmonic response of a structure calculated after a projection on a modal basis |
Note: The rendering of the results by the operator POST_GENE_PHYS is not available for calculations in dynamic substructure.
3.2. Operand MODE_MECA#
◊ MODE_MECA = fashion
Concept of the mode_meca type containing a base of modes specific to the structure.
In the absence of this operand, the retrieval base for modal recombination is automatically recovered from the generalized res_gen result at the input of the operator.
3.3. Keyword OBSERVATION#
This keyword factor can be repeated as many times as there are renderings. For each of the observations, the user is free to choose the name of the field and its components, the order numbers, and the geometric support for the rendering.
In the generated table, each occurrence of the OBSERVATIONest keyword indexed by the NUME_OBSde parameter the table.
3.3.1. Filtering by field name and components#
♦ NOM_CHAM =/'DEPL', [DEFAUT]
/”VITE”, /”ACCE”, /”DEPL_ABSOLU”, /”VITE_ABSOLU”, /”ACCE_ABSOLU”, /”FORC_NODA”, /”EFGE_ELNO”, /”SIPO_ELNO”, /”SIGM_ELNO”, /”EFGE_ELGA”, /”SIGM_ELGA”,
For the current observation, this keyword defines the name of the field to be returned. Note that for force and constraint fields, it is up to the user to ensure that they have been calculated on the modal projection basis with the operator CALC_CHAMP. Before the calculation, the operator POST_GENE_PHYS checks the existence of these fields in the projection base.
List of the names of components of the field to be returned.
This keyword is optional. If it is absent, all the components of the field are retrieved and taken into account. If the user specifies a list of components, the POST_GENE_PHYS operator first checks for the existence of these components in the requested field before performing the calculation.
3.3.2. Filtering by selection of the geometric rendering support#
/GROUP_MA = lgrma, [l_gr_ma]
It is mandatory to specify one of these 2 keywords. This makes it possible to define the geometric support for the rendering of the requested field (list of node/mesh groups).
Note:
To restore an elementary field ( ****_EL), it is essential to specify* the keyword GROUP_MA to find the groups of elements.
For a field with nodes, the user is free to choose to define either the nodes directly by the keyword GROUP_NO , or the meshes carrying the nodes of interest for rendering by the keyword GROUP_MA .
3.3.3. Filtering by order numbers, times, or calculation frequencies#
/NUME_ORDRE = num, [L_i] /TOUT_INST = “OUI”, /INST = inst, [L_r] /LIST_INST = list, listr8 /FREQ = freq, [L_r] /LIST_FREQ = list, listr8
By default, the retrieval takes place on all the order numbers stored in the result, i.e. for all the moments for a transitory calculation and for all the frequencies for a harmonic calculation.
It is possible for the user to limit his return to one part of the calculation: a list of order numbers (NUME_ORDRE), of moments (INST, LIST_INST), or of frequencies (FREQ, LIST_FREQ), or frequencies (,). However, it is important to note that no interpolation of the results is possible. The moments or frequencies requested must correspond to the moments or frequencies of the calculation in the tran_gene or harm_gene concept as input. The following operands allow you to set the criteria for selecting moments and frequencies.
◊ CRITERE =/”ABSOLU”, /”RELATIF, [DEFAUT] ◊ PRECISION =/prec, [R] /1.E-06, [DEFAUT]
3.3.4. Taking into account a training acceleration in mono-support#
◊ | ACCE_MONO_SUPPORT = (gamma1, gamma2, gamma3), [function]
In mono-support, to restore an acceleration in the absolute coordinate system (ACCE_ABSOLU), it is necessary to specify the functions giving the magnitude of the acceleration of the supports as well as the directions of their movement. It is possible to give up to 3 directions.
Note 1:
In multi-support, the calculation of absolute displacements, speeds, and accelerations does not require additional information. All you need to do is specify a NOM_CHAM from DEPL_ABSOLU, VITE_ABSOLU, and ACCE_ABSOLU. Information on the absolute movements of the supports is already stored in the generalized concept.
Note 2:
If a static correction to the loads was previously considered during the calculation on a generalized basis (CORR_STAT =” OUI “in DYNA_VIBRA), this correction is automatically taken into account in the returns of POST_GENE_PHYS.
3.4. Operands TITRE#
◊ TITRE = title
Title attached to the concept produced by this operator [U4.03.01].