Redundancy Handling with Model-Based Systems Engineering
Résumé
Redundancy is widely used in safety-critical systems to improve their reliability. This paper
proposes a framework to model different kinds of redundancy in model-based systems engineering process.
A SysML extension which allows integrating redundancy-relevant properties in the system model in order
to better represent system architecture is introduced. Via this extension, redundancy data will be explored to
automatically generate safety analysis artifacts such as fault trees based on the system structure. The redundancy
handling is explained through an Electro-Mechanical Actuator case study with an active and hot redundancy
mechanism.