The Tab Area is the portion of the graphical user interface that contains the browsers, utilities, and other functionality
not shown in the panel area.
Generates and post-processes engine order related data from an OptiStruct or Nastran frequency response analysis that contains either RPM-based loading subcases or order-based loading subcases.
The General Signal Processing utility processes the time domain pressure results from CFD simulations and visualizes
the results in both the time and frequency domain.
Predicts powertrain rigid body mode frequencies and kinetic energy distribution, which play a critical role in optimizing
the mount stiffness and layout configuration, by decoupling powertrain rigid body modes and reducing vibration transmission.
The Model Identification Tool, known as MIT, is a profile in HyperGraph 2D for fitting test data from frequency- and amplitude-dependent bushings to analytical models.
HyperGraph 3D offers a 3-D plotting environment that is fully integrated with Altair Simulation, for managing, reviewing, and analyzing 3-D plots such as waterfall, surface, and 3-D line data.
After populating the Load tab, select a method to display the participation
data.
Bar
Allows you to plot modal/panel participations to an acoustic or
structural response on a bar chart.
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.
Show highest contributor
Select the highest number of contributors to display.
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 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.
A-Weighted RSS - Contributors are
ranked by the root sum of squares of the A-weighted
complex component (abs of projected or magnitude,
depending on user selection) of their participations at
selected frequencies.
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.
Polar
Creates a 2D polar plot of the contributing modes/panels at a specific
frequency.
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.
All other options are similar to those for the Bar plot.
2D Line
Creates a plot of modal/panel participations to an acoustic or
structural response on a 2D line plot (overlay).
Frequency range indicates the available range, based on your PCH or F06
file.
Using the From and To fields, you can customize your own frequency
band.
All other options are similar to those for the Bar plot.
Sand Dune
Creates a plot of modal/panel participations to an acoustic or
structural response on a Sand Dune plot, in which each contributor’s
value is stacked on top of the previous ones, thus generating a distinct
color band for easy identification.
Frequency range indicates the available range, based on your PCH or F06
file.
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 Plot
Creates a plot of modal/panel participations to a 3D Bar plot.
Frequency range indicates the available range, based on your PCH or F06
file.
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 modal/panel participations to a 3D Surface plot.
Frequency range indicates the available range, based on your
PCH or F06 file.
Using the From and To fields, you can customize your own frequency
band.
All other options are similar to those for the Bar plot.