基于Safety Case理论的民机平视显示系统安全性评估

发布时间：2019-04-23 13:47

【摘要】：平视显示系统作为影响飞机飞行安全的关键系统,其失效可导致可控飞行撞地(Controlled Flight into Terrain)的灾难性事故,而传统的以部件故障独立为前提的安全性评估方法难以满足综合化航电系统的高度耦合、资源共享特性,无法得到全面有效的安全性分析,给民机安全性带来了隐患。采用Safety Case理论构建平视显示系统的安全性评估模型,建立安全性目标与安全性证明材料间的追溯关系,能够实现对平视显示系统的安全性评估。结果表明,基于Safety Case理论的民机平视显示系统安全性评估模型能够详细阐述系统安全目标被安全证据满足的过程。
[Abstract]:As a key system affecting the flight safety of aircraft, the failure of the head-up display system can lead to a catastrophic accident of the controllable flight impact on the ground (Controlled Flight into Terrain). However, the traditional safety assessment method based on component fault independence can not meet the high coupling and resource sharing characteristics of integrated avionics system, and can not get a comprehensive and effective security analysis, which brings hidden danger to the safety of civil aircraft. The security evaluation model of head-up display system is constructed by using Safety Case theory, and the traceability relationship between security objective and safety proof material is established. The security evaluation of head-up display system can be realized. The results show that the security evaluation model of civil aircraft head-up display system based on Safety Case theory can describe in detail the process that the security objective of the system is satisfied by safety evidence.
【作者单位】：中国民航大学天津市民用航空器适航与维修重点实验室;中国民航大学安全科学与工程学院;
【基金】：“九七三”计划(2014CB744902) 国家自然科学基金委员会-中国民航局民航联合研究基金(U1533105) 天津市自然科学基金联合资助项目(15JCQNJC42800) 中央高校基本科研业务费项目(3122015C028)
【分类号】：V243

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