By Carl Q Howard; Benjamin S Cazzolato
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Additional info for Acoustic analyses using Matlab® and Ansys®
3 . . . . . Elements Per Wavelength (EPW) for the Meshed Lines for the Baffled Circular Piston Example Using ANSYS Mechanical APDL are Close to EPW = 12 . . . . . . . . . Parameters Used in the Analysis of the Scattering of an Acoustic Plane Wave by an Infinitely Long Rigid Cylinder. . . Parameters Used in the Analysis of an Infinite Acoustic Duct Divided by a Simply Supported Thin Plate . . . . . Parameters Used in the Analysis of a Rectangular Acoustic Cavity with a Flexible Plate .
Parameters Used in the Analysis of a Circular Duct . . . Results of Modal Analyses of a Rigid–Rigid Duct . . . . Results of Modal Analyses of a Rigid–Rigid Duct . . . . Results of Modal Analyses of an Open–Rigid Duct . . . Results of a Modal Analysis of an Open–Open Duct . . . Parameters Used in the Analysis of a Circular Duct with Forced Excitation at One End . . . . . . . . . . . Parameters Used in the Analysis of a Circular Duct with a Quarter-Wavelength Tube .
Results and Frequency Range. The results from acoustic analyses are usually the acoustic pressure at discrete locations. Sometimes this level of detail is required but often it is not; instead an indicative global sound pressure level or total sound power level may be required for assessment, which will require post-processing of the results from the analysis. This can sometimes be performed within ANSYS or may require exporting data and post-processing in another software package such as MATLAB.