Reliability Block Diagram

Analyze the most complex systems with confidence

A Reliability Block Diagram (RBD) is a method of modeling how components and sub-system failures combine to cause system failure. The diagram can be analyzed to predict the availability of a system and determine the critical components from a reliability viewpoint.

The RBD module of Reliability Workbench™ can analyze large and complex RBDs, producing the full minimal cut set representation for systems and sub-systems. The tool enables you to calculate a range of importance measures and provides standard system and sub-system parameters such as unavailability, unreliability and expected failures.

With the RBD module you can construct a single project database containing failure model data and block diagrams representing one or more systems.

Availability Workbench™, Reliability Workbench™, FaultTree+™, and Hazop+™ are trademarks of Isograph Limited, the author and owner of products bearing these marks. ARMS Reliability is an authorised distributor of those products, and a trainer in respect of their use.

Features

 

Easy to use

Automatic pagination allows the user to quickly construct and print large RBDs.

 

Convenient navigation

Diagrams may be split, either manually or automatically, into a hierarchy of sub-systems.

 

Multi-level diagram capability

There is no limit to the number of hierarchical levels that may be specified for a project.

 

Common Cause Failure (CCF) analysis

Automatically generate and group blocks with the same CCF model for the accurate evaluation of their effects.

 

Component redundancy

Identify redundant components within a system.

 

Minimal cut sets

Evaluate minimal cut sets of a system to determine system performance parameters.

 

Standby modes

Hot, Cold and Warm standby modes can be applied to dormant components.