A major challenge in developing novel aircraft concepts is demonstrating the safety of increasingly complex and multifunctional aircraft systems. Aircraft manufacturers are adopting model-based systems engineering approaches to develop these new aircraft. The safety assessment process follows suit with model-based safety assessment. However, system and safety engineers still transfer information that is mainly document-based during the system architecting process. This paper aims to improve this process. First, a framework for developing system architecture specification models is introduced using the Architecture Analysis and Design Integrated Approach (ARCADIA)/Capella methodology and tool, illustrated with an aircraft landing gear braking system. Secondly, the paper proposes enhancements to the system specification model to enable functional hazard assessment and to capture the results within the system architecture specification model, i.e., using color-coding of system functions according to the severity of their associated failures as a visual aid to the system architect. In addition, the proposed features in the system specification model can help the safety engineer analyze failure relationships better. In summary, the proposed method improves consistency between the system architect and the safety expert in making safety-informed architecting decisions early in the development process, improving its effectiveness.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Integration of the Functional Hazard Assessment Within a Model-Based Systems Engineering Framework


    Contributors:

    Published in:

    Publication date :

    2024-11-01




    Type of media :

    Conference paper , Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Integration of the Functional Hazard Assessment within a Model-based System Engineering Framework

    Tabesh, Nikta / Jeyaraj, Andrew K. / Tamayo, Alvaro et al. | AIAA | 2023


    Systems Integration Framework: Application within the IWATVP

    Priestley, Duncan / Martin, Tony / Pearson, John et al. | AIAA | 2007


    Systems Integration Framework: Application within the IWATVP

    Priestley, D. / Martin, T. / Pearson, J. et al. | British Library Conference Proceedings | 2007


    MBSE-based functional hazard assessment of civil aircraft braking system

    Jiang, Yimin / Bai, Ning / Yang, Hong et al. | IEEE | 2020


    Application of functional hazard assessment in railway signalling

    Renpenning, F. / Braband, J. / Wery, S. | Tema Archive | 2003