4. Operands#

4.1. Operand CHARGE#

♦ CHARGE = lchar

The list of lchar loads should be consistent with the option chosen:

  • « mechanical » loads for option “CHAR_MECA”,

  • « thermal » loads for option “CHAR_THER”,

  • « acoustic » loads for option “CHAR_ACOU”.

This argument is mandatory.

It allows access to all the data concerning the « loading » of the system. It is necessary that all the loads on the list be based on the same model.

4.2. Operand INST#

◊ INST = GST

The tps parameter (calculation time) is used as soon as the load depends on time.

4.3. Operand CHAM_MATER#

◊ CHAM_MATER

The name of the material field where the material characteristics of the elements are defined. This argument is necessary in mechanics for gravity and rotation loads and in acoustics.

Note: in mechanics, the expansion loads induced by the control variables (or any other effect of the control variables) are not calculated by this operator. You have to use the CALCUL operator for this.

4.4. Operand CARA_ELEM#

◊ CARA_ELEM = character

This cara_elem concept is necessary if structural elements (beam, plate, shell or discrete elements) exist in the model.

4.5. Operand MODE_FOURIER#

◊ MODE_FOURIER = nh

Positive or zero integer indicating the harmonic of FOURIER on which the elementary vector for an axisymmetric 2D model is calculated. By default, nh = 0.

4.6. Operands required for calculations with static substructuring#

♦ MODELE = mo

This keyword is mandatory to find the substructures affected by the load: mo is the name of the model that carries the substructures.

♦ SOUS_STRUC

This keyword factor makes it possible to specify which loads to use for the substructures. In its absence, the loads on the substructures are zero.

These loads are in addition to the « finite element » loads that can be applied to the rest of the model.

nocas is the name of the load case to use. See operator MACR_ELEM_STAT [U4.62.01].

This keyword makes it possible to assign the nocas load to all the substructures of the model.

/SUPER_MAILLE = l_mail

This keyword factor makes it possible to assign nocas loading to only certain substructures.