Acoustic BEM Module
The Acoustic Boundary Element Module contains all the functionality you need to model the low frequency response of bounded and unbounded fluids within the VA One environment (including Fast Multipole Boundary Elements for solving large models).
The module is the evolution of the RAYON Boundary Element solver and enables you to create accurate models of fluid loading, scattering, radiation and transmission of sound at low frequencies.
Benefits
- Create detailed “component level” models of acoustic radiation and scattering at low frequencies (and/or for small, stiff components)
- Quickly add BEM fluids to existing FE models to account for random
acoustic loads, heavy fluid loading and acoustic radiation - Investigate acoustic diffraction, propagation, scattering and shadowing
effects - Investigate the detailed near field response and directivity pattern
associated with acoustic radiation from complex baffled and unbaffled
components - Use information from a component level BEM model to update a system level SEA model (update radiation efficiencies, loads etc.)
Features
- Advanced Fast Multipole Boundary Elements for large models
- Indirect, Direct and Mixed Boundary Element methods
- Inbuilt mesh coarsening and “shrink wrapping” algorithms
- Automatic creation of fluid and data recovery meshes
- Full support for non-compatible structural and fluid meshes
- Full structural-acoustic coupling and random vibration analysis
- Full library of acoustic loads: monopoles, plane waves, diffuse fields etc.
- Infinite planes, rigid planes, pressure release planes, baffles
- Advanced Multi-Domain BEM
- Fully coupled solution (BEM fluids fully integrated within VA One)











