HG3D-1000: Define Waterfall Plots

In this tutorial, you will learn how to create waterfall plots.

The Waterfall panel can be accessed one of the following ways:
  • From the toolbar, click the Waterfall panel icon,
  • From the menu bar, select Curves > Waterfall

The Waterfall panel allows you to create waterfall plots from XY force response data and input pulses. If a waterfall plot exists in the current window, HyperGraph 3D automatically fills in the default values.

Open Session File trimmer.mvw and Create HyperGraph 3D Window

  1. From the menu bar, select File > Open > Session.
  2. From the 3dplotting folder, select the file trimmer.mvw and click Open.
  3. Click Close on the message log that appears.
  4. Click the Add Page icon, , to add a page.
  5. Select HyperGraph 3D from the Select Application Menu icon.

Create a Frequency versus Time Waterfall Plot

  1. Click the Waterfall icon, , on the toolbar to enter the panel.
  2. Verify that Frequency and Time are the options set under Plot Type:.
  3. Click the curve selection icon in the Response Field for Data Curves:.
  4. Choose the Force vs Time - Raw curve.
    Figure 1.
  5. Click Preview to view the curve.
    Figure 2.
  6. Click Select.
  7. Verify that the curve referenced under Response is p1w2c1.
  8. Enter 100 for Number under Waterfall slices.
  9. Check the Contour waterfall option.
  10. Click Apply.
    Figure 3.

Create a Frequency versus RPM Waterfall Plot

While in the Waterfall panel, do the following:

  1. For Plot Type: select Input Magnitude instead of Time from the pull down menu.
  2. Under Data Curves, select RPM vs Time – Raw for Response.
    Figure 4.
    Figure 5.
  3. Select RPM vs Time – Filtered for Input under Data Curves.
    Figure 6.
    Figure 7.
  4. Check the box for Input vector is in RPM to scale the RPM to RPS.
  5. Click Apply.
    Figure 8.
  6. Click Undo to return to the Frequency vs Time plot.

Create an Order Waterfall Plot

While in the Waterfall panel, do the following:

  1. For Plot Type: select Order(scaled) instead of Frequency from the pull down menu.
  2. Select RPM vs Time – Filtered for Input under Data Curves.
  3. Click Apply to create the plot.
    Figure 9.
  4. Click Undo to return to the Frequency vs Time plot.