Acoustics BEM workflow

Step	Summary	Detailed help topic
1.	Create a FEM and mesh the BEM model.	Create a FEM using the Simcenter 3D Acoustics BEM Simulation template. Set the Solver to Simcenter 3D Acoustics BEMand the Analysis Type to Direct Acoustic, Indirect Acoustic, or Indirect Vibro-Acoustic.Create the boundary mesh using acoustic 2D elements. Create acoustic fluid material. For each mesh collector, choose the appropriate acoustic fluid material and physical properties for your analysis. Create microphones to calculate acoustic responses using Mesh Primitives.	Create a new FEM fileMeshing for acoustic analysesFluid materials for acoustic analysisModeling microphones to capture analysis results
2.	Create a simulation	Create a simulation using the Simcenter 3D Acoustics BEM Simulation template.	Create a new Simulation file
3.	Create the solution	Create a new solution with Solver set to Simcenter 3D Acoustics BEM and Analysis Type to Direct Acoustic, Indirect Acoustic, or Indirect Vibro-Acoustic.Define the solution Frequency range.Specify Output Requests: Pressure, Normal Velocity, and Normal Intensity. Specify Quadrature settings for solution quality.	Create or modify a solutionControlling accuracy of the numerical integration with quadrature settings (Acoustics BEM)
4.	Create acoustic and structural loads	Acoustic loads may be Acoustic Monopole Source, Enforced Acoustic Pressure, and Normal Acoustic Velocity.You can create a Load Recipe by adding the appropriate data source file to the Load Recipes Manager.	Create acoustic monopole sourceCreate enforced acoustic pressureCreate normal acoustic velocityCreate a load recipe
5.	Create simulation objects	Create an Infinite Plane to model acoustic boundary conditions (zero velocity or zero pressure).Create Acoustic Absorber to selectively absorb sound waves.	Create an infinite planeCreate an acoustic absorber
6.	Select solution parameters	Select solution parameters and output requests.	Select solution parametersRequest acoustic outputRequest output for Direct Acoustic, Indirect Acoustic, and Indirect Vibro-Acoustic analysis types (Acoustics BEM)Plotting contribution from panels, structural modes, fluid modes, and MATVs
7.	Solve the solution	Solve the solution to generate the analysis results.	Solve the model
8.	Post-process results	Use post-processing tools, such as contour plots or XY graphing to analyze your results. Use Post-processing Scenario or Post Processing Navigator to display your output.Display acoustic nodal pressure results with or without dB scaling.Display Quality Metrics, such as Maximum Frequency or One-way Fluid-Structure Interface Coupling. Display Transmission Loss.	Scenario-based post-processingCreate contour plotsScaling acoustic resultsPlot coupling quality resultsTransmission Loss scenario (Simcenter Nastran FEM acoustics and Acoustics BEM)

Learn more

Acoustics BEM solver environment

Acoustics BEM remote solving workflow (Linux)

Checking your model prior to solving (Acoustics BEM)

Modal-based forced response with vibro-acoustic coupling (Acoustics BEM)

Quick links

Command reference

Pre/Post video examples

Bulk Entry Descriptions

Simcenter 3D tutorials

Browse Simcenter 3D help by product area

Acoustics BEM workflow, Simcenter 3D 2021.1 Series

© 2020 Siemens

window.mainLanguage="en_US"

window.delivId=""

window.projectId=""

MathJax.Hub.Config({ TeX: { extensions: ["autoload-all.js"] }, tex2jax: { displayMath: [ ] }, "SVG": { scale: 125 } });