Product: Abaqus/Standard
Benefits: The coupled structural-acoustic eigenmodes extracted by the Lanczos eigensolver can be stored on the SIM architecture. In addition, the modal methods can utilize these modes for superposition.
Description: If the model includes structural-acoustic coupling, Abaqus/Standard can extract coupled modes. The coupled eigenmodes can now be stored on the SIM architecture, which is much more efficient than the traditional architecture for large-scale modal analyses, and subsequent modal procedures can use these modes.
The coupled structural-acoustic modes are supported in the following modal procedures that use the SIM architecture:
Lanczos eigenvalue extraction,
complex eigenvalue extraction,
mode-based steady-state dynamic analysis, and
subspace-based steady-state dynamic analysis.