ESI VA One 2024.1: Vibro-Acoustic Simulation Software
VA One 2024.1 is the latest release of ESI Group’s vibro-acoustic simulation software, widely recognized as the industry standard for analyzing noise and vibration across the full frequency spectrum . This release restores all modules that were suppressed in the previous version following a compliance review .
Key New Features in 2024.1
Module Restoration
-
Stress, Shock, DFAT and Path 49 Restored: All modules have been approved for worldwide release and licensing under EAR99 classification .
Numerical SEA Solver Performance
-
Performance Boost: Significant improvements to the line junction solve step, enabling faster and more stable SEA calculations .
BEM Stability & Robustness
-
High-Mode & PEM Mesh Handling: Fixes for solver stops due to IGVITE and workspace errors .
-
Memory Management: Improvements preventing crashes and instability in BEM workflows .
FE/SEA/Hybrid Workflow Corrections
-
Power Through Faces: Improved reliability for plotting power through faces (matrix multiplication error resolved) .
-
Ribbed Section Conversion: More accurate behavior when converting Ribbed to General Ribbed sections with correct angle handling .
General Reliability Improvements
-
Load Cases: Correct enabling of load cases in browser window .
-
Numerical SEA Stability: Fix for models crashing under certain junction angles .
-
Memory Leaks: Resolution of memory leaks in SEA modeling .
-
Mode Number Guidance: Improved documentation .
Trim Modeler Improvements
-
NCT Removal Stability: Fix for errors when removing NCT from SEA Panels tab .
Upgrade & Compatibility
-
Automatic Conversion: Better workflows for older VA One versions via XML intermediary .
-
Compatibility Rules: Clearer handling for non-upwards-compatible .va1 files

