This chapter discusses features related to defining an analysis. It provides an overview of the following enhancements:

• “Abaqus/Standard to Abaqus/Explicit co-simulation,” Section 6.1

• “Modeling discontinuities using the extended finite element method (XFEM),” Section 6.2

• “Selective subcycling,” Section 6.3

• “Removal of parallel Lanczos and Lanczos restart features,” Section 6.4

• “Improvements to the AMS eigensolver,” Section 6.5

• “High-performance coupled structural-acoustic subspace-based steady-state dynamic analyses,” Section 6.6

• “Performance improvement for coupled structural-acoustic mode-based steady-state dynamic analyses,” Section 6.7

• “Enhancements to the AMS eigensolver user interface,” Section 6.8

• “Enhancements to the steady-state dynamics user interface,” Section 6.9

• “Substructure output for steady-state dynamic analyses,” Section 6.10

• “Limiting output of modes in complex eigenvalue extractions,” Section 6.11

• “Activating fluid exchange based on the change of leakage area,” Section 6.12

• “Activating acoustic flow velocity during substructure and matrix generation,” Section 6.13