Design and analysis of ongoing safety assessment system architecture of civil aircraft

Abstract

The safety assessment process of civil aircraft during the operational phase involves the integration and interaction of the capabilities of multiple systems.The systematic ongoing safety assessment system based on standard specifications is lacked in China currently.A system architecture for civil aircraft ongoing safety assessment is designed and built from multiple perspectives, which is based on the US Department of Defense architecture framework (DoDAF) and unified modeling language (UML), and the comprehensive description of the top level of the control chain for ongoing safety assessment is given.On this basis, the complex network theory is introduced to evaluate the overall performance of the architecture.The importance evaluation index is proposed by considering the node centrality and network robustness to identify the key nodes, and the key nodes are performed with design and optimization.The results show that the designed civil aircraft ongoing safety assessment architecture can integrate the resources and capabilities of multiple systems, clarify the system control process and the interaction between systems, and enhance the stability of the architecture after optimization of key nodes, which can provide the guidance for safety assessment and management during the operational phase.

Keywords

• ongoing safety assessment
• system architecture
• department of defense architecture framework(dodaf)
• complex network