Acoustics Transient BEM workflow

Step	Summary	Detailed help topic
1.	Create a FEM and mesh, or import, 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 Transient Acoustics BEM Simulation template.	Create a new Simulation file
3.	Create the solution	Create a new solution with Solver set to Simcenter 3D Acoustics Transient BEM, Analysis Type to Transient Acoustic or Transient Vibro-Acoustic.	Create or modify a solutionNote: The Analysis Type will set the appropriate Solution Type (Acoustic Response or Vibro-Acoustic Response).
4.	Edit output requests	Edit the Solution and the Output Requests.	Select Incident+Scattered or Scattered Only response.Choose All Microphone Nodes or None.DBEM Acoustic, IBEM Acoustic, and IBEM Vibro-Acoustic Output Requests dialog boxes (Acoustics BEM)Plotting contribution from panels, structural modes, fluid modes, and MATVs
5.	Create acoustic and structural loads	Acoustic loads may be Acoustic Monopole Source or Acoustic Plane Wave.Vibro-Acoustic loads may be:Load Recipe by adding the appropriate data source file to the Load Recipes Manager.Force excitation on a Mode Setrepresentation.	Create acoustic monopole sourceCreate acoustic plane waveCreate a load recipeCreate a force
6.	Create simulation objects	Create an Infinite Plane to model acoustic boundary conditions (zero velocity or zero pressure).Create an Acoustic Absorber to selectively absorb sound waves.	Create an infinite planeCreate an acoustic absorber
7.	Select solution parameters	Select solution parameters.	Select solution parameters
8.	Solve the solution	Solve the solution to generate the analysis results.	Solve the model
9.	Post-process results	Use post-processing tools to analyze your results. Use a Post-processing Scenario to display acoustic responses as pressure versus time or to display structural responses of displacement/velocity/acceleration versus time as contour plots or XY plots.	Scenario-based post-processing

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Acoustics Transient BEM

Coupling for Indirect Vibro-Acoustic BEM and Acoustics Transient BEM

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Acoustics Transient BEM

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Acoustics Transient BEM workflow, Simcenter 3D 2021.1 Series

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