3. Operands

3.1. Operand BASE

♦ BASE = low

A concept of the mode_meca type that contains the vectors defining the projection subspace.

3.2. Operand NUME_DDL_GENE

♦ NUME_DDL_GENE = nu_gene

Generalized numbering based on BA.

3.3. Operand FREQ_EXTR

♦ FREQ_EXTR = freq

Real value of the extraction frequency of seismic forces from the ground.

3.4. Operand UNITE_RESU_FORC

♦ UNITE_RESU_FORC = uresfor

Logical unit of the ground seismic forces file calculated previously by MISS3D with CALC_MISS in post-processing and data as input to the study profile.

3.5. Operand NOM_RESU_FORC

♦ NOM_RESU_FORC = nresfor

Local name in the study project of MISS3D from the file of ground seismic forces previously calculated by MISS3D with CALC_MISS in post-processing. This occurs, for example, in the case of point sources.

3.6. Operand ISSF

♦ ISSF =/'NON',/'OUI',

If “OUI”, consideration of the format specific to studies by MISS3D in soil-structure-fluid interaction in accordance with this same keyword in CALC_MISS.

3.7. Operands NOM_CMP/NUME_CHAR

♦/NOM_CMP =/'DX',/'DY',

/”DZ”,

Name of the component corresponding to an incident seismic field direction.

/NUME_CHAR = numec

In the case of inclined waves or point sources where NOM_RESU_FORC has been entered with a local extension name “.f”, the seismic field is defined by a load number between 1 and 3 for inclined seismic forces and necessarily equal to 1 for a point source.

3.8. Operand NOM_CHAM

♦ NOM_CHAM =/'DEPL',/'VITE',

/”ACCE”,

Field name giving the nature of the imposed unit incident seismic field (for example “ACCE” if unit acceleration imposed).