![]() The easiest way to understand a complex system is by viewing it in diagram form. There are many advantages to performing RBD analysis either on its own or as part of a larger system analysis practice. Whenever there is a need for system reliability and availability assessment, especially when redundancy is an integral part of the design, RBD analysis is the tool of choice. This article provides information about the system modeling options and calculation techniques utilized in RBD analysis. Therefore, an RBD consists of two parts: the front-end graphical diagram that depicts the system and the back-end calculation engine that computes the reliability and availability measures of the system. The objective of RBD analysis is to determine system metrics based on its configuration. RBDs can also include repair related data to more accurately reflect real-world system performance. RBDs are most often used to model complex systems, especially those that incorporate redundant components. In other words, the layout and connections of the components indicate the paths of a given system’s successful operation. RBDs are created in a visual format, using blocks to represent components or elements of the system and connections between the blocks to define their relationships to one another. ![]() Reliability Block Diagram (RBD) analysis is a methodology for assessing and calculating the reliability and availability metrics of complex systems using a graphical depiction of the system. ![]()
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