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This command makes it possible to calculate the effect of hydrodynamic overpressure due to the driving movement of the structure in seismic analysis where the total movement is decomposed into driving movement and relative movement. The calculation of this force is carried out like that of the mass added by thermal analogy, but instead of taking into account only the relative movement, we obtain a force added to the second limb, also projected onto the modes of the structure without the fluid, to take into account the driving movement.

The calculation of the masses added [R4.07.03] by CALC_MATR_AJOU [U4.66.01] and that of the forces added by CALC_FORC_AJOU can be started simultaneously using the macro command MACRO_MATR_AJOU [U4.66.11].

Produce a Vect_asse_gene_r concept