Ray Acoustics workflow

Step	Summary	Detailed help topic
1.	Create a FEM file.	Create a FEM file using the Simcenter 3D Ray Acoustics Fem template. Set the Solver to Simcenter 3D Ray Acoustics and set the Analysis Type to Acoustic.	Create a new FEM file
2.	Create the fluid.	Create the 2D acoustic fluid mesh.Create the acoustic fluid material. For each mesh collector, choose the appropriate acoustic fluid material and physical properties matching the analysis and element type.	Fluid materials for acoustics analyses
3.	Create microphone mesh.	Create a microphone mesh to measure sound inside or outside the fluid.	Using microphone mesh to capture analysis results
4.	Create a Simulation file.	Create a Simulation file using the Simcenter 3D Ray Acoustics simulation template.	Create a new Simulation file
5.	Create the solution.	Create a new solution with Solver set to Simcenter 3D Ray Acoustics, Analysis Type set to Acoustic, and Solution Type set to Acoustic Response.To enable particle tracing, select the Enable Particle Tracing check box and define the Particle Solver Parameters, Wide Bands, and Time Sampling options.To convert results to the time domain, select the Convert Results to Time Domain check box.	Create or modify a solution
6.	Define acoustic absorber properties.	Specify absorber properties with the Acoustic Absorber Properties modeling object. You can then reference these acoustic absorber properties in the Acoustic Absorber simulation object.	Acoustic Absorber Properties dialog boxAcoustic Absorber dialog box (Ray Acoustics)
7.	Create acoustic absorbers.	Specify acoustic absorbers on 2D fluid elements with the Acoustic Absorber simulation object, and create or reference acoustic absorber properties to model complex soundproofing materials on a structural surface.
8.	Define diffractions.	Specify diffractions on element edges or faces of acoustic fluid elements using the Diffraction simulation object to account for the spreading of rays.
9.	Define smooth surfaces.	Specify smooth surfaces using the Smooth Surface modeling object to ensure the software considers irregular surfaces to be reflective.
10.	Define forcing frequencies.	Add the Forcing Frequencies modeling object to the solution subcase to excite the model.	Specifying forcing frequencies for a frequency response analysis
11.	Define physical solver parameters.	Create a Physical Solver Parameters modeling object to control whether to account for air absorption for the analysis.
12.	Create output requests.	Request the desired output, such as acoustic pressure at microphone nodes, ray paths, and echograms using the Output Requests modeling object.For a particle tracing solution, you can also request the output of sound Quality Criteria.
13.	Create acoustic loads.	Add acoustic sources to the Simulation file as needed: Point Ray Source or Panel Ray Source.	Point Ray Source dialog box and Automatically create directionality fieldsPanel Ray Source dialog boxUsing fields and expressions to define boundary conditions
14.	Define the solver parameters.	In the Solver Parameters dialog box, specify the location of the solver, parallel processing parameters, amount of reflections, diffractions, and beam subdivisions to be computed.	Solver Parameters dialog box (Ray Acoustics)
15.	Solve the model.	Solve the model to generate the acoustic response results.Note: During this step, the solver writes the results to an *.xml file and the pre-solver converts the *.xml file to a simulation_file_name-solution_name-results.sc_h5 file that can be used for post-processing.	Solve the model
16.	Post-process the results.	Select the acoustic results and choose Post-processing Scenario.	Scenario-based post-processing

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Simcenter 3D Ray Acoustics environment

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Ray Acoustics workflow, Simcenter 3D 2021.1 Series

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