Executing a New Noise Analysis

You can execute a new noise analysis from your simulation process flow on the Isight Design Gateway.

  1. From the Process Flow, right-click a specific Abaqus component.
  2. Select FEA Noise Check.

    The FEA Noise Check dialog box appears, and a new noise analysis is created automatically if you have not already executed a noise analysis on the selected component. If you previously executed a noise analysis on the selected component, click Define and execute a new noise analysis to confirm that you want to execute a new analysis.

  3. Specify the input parameters that will be scanned, the number of subflow evaluations per input, and the fraction of the domain over which the scan will occur.
    1. Verify that the Inputs tab is selected.
    2. Right-click in the table to access various options for working with inputs. For more information, see Setting Table Options.
    3. In the first column, click the check boxes next to the parameters that you want to use as input parameters. Alternatively, you can click Add to add all the selected parameters (including array elements). To clear all the parameters, click Remove.

      Based on the model’s problem formulation and the fraction of the domain control, the following values are determined automatically and displayed for each selected parameter (the values cannot be edited):

      • Minimum. The lower bound for the noise analysis parameter scan.
      • Maximum. The upper bound for the noise analysis parameter scan
      • Value. The current parameter value.

    4. Set any of the following input parameter options, as desired:

      • Number of evaluations per input. Allows you to specify the number of subflow evaluations that will occur for each selected input parameter. The default setting is 10. The minimum number of evaluations is 7. There is no limit to the maximum number of evaluations that can be performed.
      • Run evaluations in parallel. Allows you to execute in parallel instead of one run at a time, decreasing the time needed to generate the runs necessary to compute the noise.
      • Fraction of the domain to scan. Allows you to specify the range of the scan. The default range is 0.1. If the parameter has upper and lower bounds, 0.1 will be interpreted as 10% of the domain centered at the current value. If the parameter is not bounded, 0.1 will be interpreted as plus or minus 5% of the current value. The parameter table displays the current, lower, and upper value of the scan for each selected parameter.

  4. Specify the output parameters for which the noise level will be computed.
    1. Click the Outputs tab.
    2. Right-click in the table to access various options for working with parameters. For more information, see Setting Table Options.
    3. In the first column, click the check boxes next to the parameters that you want to use as output parameters. Alternatively, you can click Add to add all the selected parameters (including array elements). To clear all the parameters, click Remove.
  5. Click Run Noise Check to execute the noise analysis.

    The Runtime Gateway appears, and the noise check is performed.

  6. Examine the results. The results are the same as those available when the Noise Analysis component is inserted directly into your simulation process flow. For more information, see About FEA Noise Check Execution Results.