Command reference help topics
PSD to Time Conversion dialog box
Generates a Time function from a PSD (Power Spectral Density) function.
| Qualifying Records table | |
|---|---|
| Qualifying Records | Displays the available AFU records. |
| Show All | Displays all records in the loaded AFU.If you clear this check box, the table displays only the functions available that can be processed by the conversion. |
| AFU Name column | Lists the AFU loaded to the model. |
| Record Name column | Lists the record identifier. |
| Function Type column | Lists the function type (Frequency, Time, and so on). |
| Abs Unit column | Lists the abscissa (X-axis) units. |
| Ord Unit column | Lists the ordinate (Y-axis) units. |
| Add AFU Records | Adds a function to the table.Select the function from a loaded AFU file in the XY Function Navigator and click . |
| Remove AFU Records | Removes a function from the table.Select the function in the table and click . |
| Input Parameters | |
| Time Increment | Enter the time increment. |
| Number of Time Points | Specifies the total number of points for the resulting record.128(27)**Generates 128 time points.256(28)**Generates 256 time points.512(29)**Generates 512 time points.1024(210)**Generates 1024 time points.2048(211)**Generates 2048 time points.4096(212)**Generates 4096 time points.8192(213)**Generates 8192 time points.16384(214)**Generates 16384 time points.32768(215)**Generates 32768 time points.65536(216)**Generates 65536 time points. |
| Interpolation Method | Specifies the interpolation method for the axes values. For example, if you select Log-Log, the software interpolates the Abscissa and Ordinate values using a log scale.Linear-LinearInterpolates the Abscissa and Ordinate values using a linear scale.Log-LogInterpolates the Abscissa and Ordinate values using a log scale.Log-LinearInterpolates the Abscissa values using a log scale and Ordinate values using a linear scale.Linear-LogInterpolates the Abscissa values using a linear scale and Ordinate values using a log scale. |
| Output | |
| Output | Specifies how the software should write the resulting data in the AFU file. Output options:AppendAppends the new function to an existing function.OverwriteOverwrites an existing function with the new function.Other AFUSelects a new AFU file in which to save the function. |
| AFU File | Appears when Output is set to Other AFU.Sets the path and file name of the AFU file where the resulting data will be saved.You can also click Browse to select the file location. |
How do I
Convert SRS/PSD/Time functions
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PSD to Time Conversion dialog box, Simcenter 3D 2021.1 Series
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Source: https://docs.sw.siemens.com/en-US/doc/289054037/PL20200601120302950.advanced/xid1744428 · retrieved 2026-07-17