1. But#
Assemble the overall stiffness or mass matrix from the substructures.
In the context of a calculation using dynamic substructuring methods (modal or harmonic analysis), this operator creates the generalized stiffness or mass matrix or possibly damping matrix (harmonic or transitory analysis), by assembling the corresponding generalized matrices of the macr_elem_dyna type (cf. operator MACR_ELEM_DYNA [U4.65.01]) contained in a list defined when creating the generalized model (cf. operator DEFI_MODELE_GENE [dyna]) contained in a list defined when creating the generalized model (cf. operator [dyna]) U4.65.02]). The generalized matrix assembled is real and symmetric (storage of the lower triangular part). It is built on a numbering of generalized degrees of freedom and stored in the form of a « sky line ». The addressing tables are those calculated beforehand by the operator NUME_DDL_GENE [U4.65.03].
The result concept produced by this operator is of type: Matr_asse_gene_r.