使用困难报告安全性风险评估方法研究

Research of Safety Risk Evaluation for Service Difficulty Report

基于使用困难报告(SDR)数据,给出了四类SDR严重度分类标准,并给出了多事件的严重度计算方法、事件相对发生概率计算方法和事件风险水平的计算方法,在此基础上建立了SDR风险矩阵图和风险趋势表,最后通过实例对此进行了验证。通过SDR风险矩阵和风险趋势表,可以及时监控航空器、系统或部件的安全性水平。SDR安全性风险评估方法的建立,为运输航空器安全性评估研究提供了有效的技术手段。

Base on data of service difficulty report（SDR）,the paper gives criteria of affair criticality,calculation methods for the criticality of multiple affairs,the relative probability of affair,and risk level of affair.Using these methods mentions above,a SDR risk figure and a SDR risk trend table are also constructed.These methods have been verified by a real example.Through the SDR risk matrix and SDR trend table,the safety level of airplane,system or component can be monitored in time.SDR safety risk evaluation method could be used effectively for the study of airplane safety evaluation.