Overlay Plots

BlockSim gives you the ability to place results from more than one RBD, fault tree and/or phase diagram on a single plot using an overlay plot. To add an overlay plot to a project, choose Insert > Reports and Plots > Overlay Plot.

The Select Diagrams window will appear, allowing you to select the RBDs, fault trees and/or phase diagrams to be associated with the overlay plot from any diagram in the project. You must have two or more analyzed diagrams, fault trees and/or phase diagrams within the current project in order to plot multiple diagrams in an overlay plot diagram.

Note that if you select a simulation plot before simulating all selected diagrams, fault trees and/or phase diagrams, a window will appear asking if you want to simulate the diagram. If you click Yes, the Maintainability/Availability Simulation window will appear, which allows you to perform the simulation. After running the simulation, the overlay plot displays the plot.

What’s Changed? In previous versions of the software, overlay plots were known as MultiPlots.

Plot Types

You can select which plot type you want to view by choosing one from the Plot Types drop-down list on the overlay plot control panel. The available plots depend on the diagrams used in the plot.

Analytical Plots
- Unreliability vs. Time
- Reliability vs. Time
- PDF Plot
- Failure Rate vs. Time
Simulation Plots
- Point Availability
- Point Reliability
- Cost
- Mean Availability
- System Failures
- Throughput
- System Bubble Plot

Note: This report is similar to the Block Results plot, but it shows results for systems instead of blocks.