1. Linear and non-linear dynamics#

1.1. Operator DYNA_VIBRA#

The redesign of the DYNA_VIBRA operator has resulted in the following changes:

  • Reprogramming of the integration diagram DEVOGEet generalization to all calculations.

  • Availability of the integration diagram ITMIpour any transitory calculation and not only IFS.

  • Introduction of a new method for the treatment of shocks based on the particularities of IFS, with the keyword TRAITEMENT_NONL = “EXPLICITE”/”IMPLICITE”.

  • Evolution of archiving to allow the user to force the calculation and archiving of moments of interest.

  • Treatment of localized non-linear forces (options TRAN/GENE).

  • Introduction of unidirectional friction for law DIS_CHOC via the keyword UNIDIRECTIONNEL =/” OUI “/” NON “.

1.2. Coupling MISS3D#

  • Improved CALC_MISS/DEFI_SOL_MISSavec the further automation of data generation MISS3D

  • Improvements to DEFI_SOL_EQUIdont: the introduction of a ONDE_PLANE load of several types with or without conditions at the periodicity limits

  • Modification of CALC_MISS/IMPEDANCE_TEMPORELLE for binary file output

1.3. Tools#

Dynamic analysis on a modal basis:

  • Verification of the physical direction of the damping calculated by the macro command CALC_AMOR_MODAL

Signal post-processing:

  • Calculation of coherence functions from time signals via CALC_FONCTION/COHERENCE

  • Accelerogram interpolation via CALC_FONCTION/INTERPOL_FFT

  • Introduction of macro command CALC_SPECTRE_IPM for modeling floor-hardware interaction

  • Introduction of macro command LISS_SPECTRE to automate spectrum smoothing.