BlockSim Analytical RBD Diagram

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Analytical RBD

A reliability block diagram (RBD) is a graphical representation of how the components of a system are reliability-wise connected. Each block represents a component of the overall system or process that is represented by the RBD. You can define individual blocks with the reliability and other characteristics of the components they represent.

BlockSim’s RBDs and fault trees can be configured as analytical diagrams or simulation diagrams. In the analytical (or algebraic analysis) approach, the system's pdf is obtained analytically from each component's failure distribution using probability theory. In other words, the analytical approach involves the determination of a mathematical expression that describes the reliability of the system in terms of the reliabilities of its components. Once the system's reliability function has been determined, other calculations can then be performed to obtain metrics of interest for the system.


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