飞行数据记录设备(FDR)的使用为飞行安全的定量评价提供了必要的数据支撑,该文通过对FDR数据中与发生受控撞地飞行风险相关的飞行参数的统计分析,构建了以FDR数据为基础并结合专家知识规则的飞行安全风险指数计算模型,提出了一种基于飞行参数超限频率和强度的飞行安全风险指数,并用以标示飞行安全相对水平的方法,给出了风险指数的数学定义及其计算方法。
Through the analysis of FDRs data relative to the risk of controlled flight to terrain (CFIT), the framework of a quantified model to assessment CFIT risk based on FDR data is introduced. It is a computer model that uses the both exceeding data from the FDRs and knowledge based rules from safety experts to quantify the risk of an incident and/or accident by risk indicators. The mathematics definition of the risk indicator and its computing method are given.
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