In this paper, an integrated, simulation-driven model-based safety analysis (MBSA) approach that supports the failure modes and effects analysis (FMEA) of system architecture models is presented. The main contribution is the capability to perform simulation-based validation of the FMEA table by checking the system level effects described in the FMEA table against the results obtained from fault-injected simulations, based on formalized effect descriptions. This enables the validation of the FMEA assumptions and improves consistency between the system design model and the FMEA. The simulation-based validation makes use of fault models injected to a system architecture model which are uniquely mapped to FMEA table cells using a linking mechanism. The method is demonstrated based on the flight control system of an unmanned ultralight helicopter, which was developed in a recent research project. The system architecture model of the flight control system is presented and it is shown how an FMEA analysis for this system is derived from the architecture model and how static and simulation-based validation is performed.
Simulation-Driven Failure Modes and Effects Analysis of Flight Control System Architectures
2024-09-29
2450126 byte
Conference paper
Electronic Resource
English
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