Option

Description

Bar

Allows you to plot path contributions to an acoustic or structural response on a bar chart.

First, select a subcase for which TPA contributions will be plotted. Then, select frequency or RPM from the Display path contribution by drop-down menu.

Enter a specific frequency in the Specific Frequency field, or use the slider bar to select a frequency value.  When you use the slider bar to select a frequency, a red line is displayed on the response plot and is dragged simultaneously as you drag the slider bar.

Combine path

Do not combine – Path contributions are not combined.

To point (L3) – Path contributions are combined to point (description level 3 - see Input point description section of the Transfer Path Details - Point Tab topic).

To component (L2) – Path contributions are combined to component (description level 2 - see Input point description section of the Transfer Path Details - Point Tab topic).

To subsystem (L1) – Path contributions are combined to subsystem (description level 1 - see Input point description section of the Transfer Path Details - Point Tab topic).

Show contrib.

Select the number of the highest contributors to display.

Available numbers are 1 though 20 in increments of 1, and All.

Optionally, you can filter path contributors to a smaller set by clicking the Filter Contrib. dialog.

Complex component

Projected - Plots scalar participation values after projection to the response.  The positive values are in-phase with the response and the negative values are out-of-phase.  Available for Bar plots only.

Magnitude - Plots the magnitude of the complex participation values.  Available for Bar, Sand Dune, and 3D Surface plots only.

Magnitude-Phase - Plots the magnitude and phase of the complex participation values.  Available for Polar, 3D Polar, and 2D Line plots only.

Abs of Projected - Plots the absolute value of the complex participations after projection to the response.  Available for 2D Line, Sand Dune, and 3D Surface plots only.

Rank by

Abs of Projected - Contributors are ranked by the area under the curve of the absolute values of their participations, projected to the response.

Magnitude - Contributors are ranked by the area under the curve of the magnitude of their participations.

Abs of Projected RSS - Contributors are ranked by the root sum of squares of their participations at selected frequencies projected to the response.

Magnitude RSS - Contributors are ranked by the root sum of squares of the magnitude of their participations at selected frequencies.

Listed order – Contributors are plotted in the same order as they are listed in the Path Details dialog.

Identify path by

Path description – Path description is used as the path label on the plot.

Path label – Path label is used as the path label on the plot.

Path name – Path name is used as the path label on the plot.

Plot Selection

Allows you to plot additional TF, force, and PM plots, along with the path contributions plot.  The path contributors are plotted in the same order as they appear on the path contributions plot.
 
TF, force, and PM plots cannot be generated if you selected Combine path contributions.

Polar

Creates a 2D polar plot of the path contributions at a specific frequency.

Enter a frequency in the Specific frequency field, or use the slider bar to select a frequency value.  When you use the slider bar to select a frequency, a red line is displayed on the response plot and is dragged simultaneously as you drag the slider bar.

All other options are similar to those for the Bar plot.

2D Line

Creates a plot of path contributions to an acoustic or structural response on a 2D line plot (overlay).

Frequency range indicates the available range, based on the frequencies used during the transfer path analysis.

Using the From and To fields, you can customize your own frequency band.

All other options are similar to those for the Bar plot.

3D Bar

Creates a plot of path contributions on a 3D Bar plot.

Frequency range indicates the available range, based on the frequencies used during the transfer path analysis.

Using the From and To fields, you can customize your own frequency band.

All other options are similar to those for the Bar plot.

3D Surface Plot

Creates a plot of path contributions on a 3D Surface plot.

Frequency range indicates the available range, based on the frequencies used during the transfer path analysis.

Using the From and To fields, you can customize your own frequency band.

All other options are similar to those for the Bar plot.

Force Vector

Force Vector plots at a particular frequency for one-step TPA results.

Display options

The Display Options dialog allows you to customize the plot, including scale, weighting, and the plot layout.

Display

Click Display to display the response plot.