BlockSim Analytical Fault Tree and RBD Plot Examples

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Let's assume that the three components A, B and C follow failure distributions Weibull(Beta=1.5,Eta=1000), Weibull(Beta=1.1, Eta=800) and Exponential(MTTF=3000). The reliability for each components and the system at mission time =100 hours is shown in the figure below.

OR gate Results.png

There are several plots available for analytical RBD and fault tree analysis.

At the system level, there are four plots available as shown in the following:

Unreliability vs. Time
Unreliability VS Time.png


Reliability vs. Time
Reliability VS Time.png


Probability Density Function
PDF.png


Failure Rate vs. Time
Failure Rate VS Time.png

For the metrics, three kinds of reliability importance plots are available:

Reliability Importance vs. Time
Reliability Importance vs Time.png


Static Reliability Importance
Static Reliability Importance.png


Static Reliability Importance (Tableau)
Static Reliability Importance (Tableau).png


At the block level, four kinds of plots are available:

Block Unreliability vs. Time
Block Unreliability vs. Time.png


Block Reliability vs. Time
Block Reliability vs. Time.png


Block Probability Density Function
Block Probability Density Function.png


Block Failure Rate
Block Failure Rate.png