ATV set workflow (Acoustics BEM)

You compute BEM Acoustic Transfer Vectors (ATVs) using the Acoustic Transfer Vector solution in the Simcenter 3D Acoustics BEM environment.

Acoustics BEM stores ATVs in a file with the name simulation_file_name-solution_name-acoustic-results.ssndb.

Step	Summary	Detailed help topic
1.	Create a boundary fluid mesh around the exterior of a structural mesh.	Model the acoustic fluid as a 2D mesh with acoustic fluid properties.	Meshing for acoustic analyses
2.	Assign or create an acoustic fluid material for the fluid mesh.	Specify the fluid density and speed of sound.	Fluid materials for acoustic analyses
3.	Remove the structural mesh from the solver list.	Select the structural mesh and choose Edit Mesh Associated Data. In the Mesh Properties group, clear the Export Mesh to Solver check box.	Mesh Associated Data dialog box
4.	Create a microphone mesh using a mesh primitive or using manual methods.	Define microphones in the model to measure pressure results.	Using microphone mesh to capture analysis resultsMesh primitives for acoustics and vibro-acoustics analysis
5.	Create a new Simulation file and make it the work part.	Select the FEM file and choose New Simulation.	New Simulation dialog box
6.	Create a new solution.	Set the Solver to Simcenter 3D Acoustics BEM, the Analysis Type to Indirect Acoustic, and the Solution Type to Acoustic Transfer Vector.	Solutions and solving
8.	In the Solution dialog box, create a Forcing Frequencies modeling object, and optionally specify quadrature distance parameters.	Compute the ATVs between the minimum and maximum frequencies of the excitation frequency range of the vibro-acoustic solution.	Forcing Frequencies dialog box (Acoustics BEM)
9.	(Optional)Create an infinite plane, acoustic absorber, or transfer admittance simulation object.		Boundary conditions (Acoustics BEM)
10.	Solve the solution.		Solve the model
11.	Post-process the results.	Select the acoustic results and choose Post-Processing Scenario.	Scenario-based post-processing

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ATV set workflow (Acoustics BEM), Simcenter 3D 2021.1 Series

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