基于试飞员操纵特性的试飞科目风险定量评估

Quantitative risk evaluation of flight testing subject based on operational characteristics of test pilot

基于"试飞员-飞机-环境"系统仿真,对飞行试验科目中的高风险动作科目进行风险定量评估研究,提出了一种基于试飞员操纵特性的风险定量评估方法。研究了试飞员操纵行为参数的随机性模型,对其进行分布假设检验后得到操纵特征参数的概率密度函数,运用仿真计算安全操纵裕度,求取试飞员的操纵风险概率。以GJB 626A-2006中的自动驾驶仪低限高度自动拉起科目为例,验证了该方法的可行性和实效性。研究结果可为制定特情处置方案、提出试飞员操纵建议和飞行安全改进措施提供理论参考。

Based on the simulation of a＇test pilot-aircraft-environment＇ system,the quantitative risk evaluation of high risk motion subjects in flight testing is researched,and a method of risk evaluation based on operational characteristics of test pilots is proposed.The random models of pilot＇s operation parameters are researched,and distribution hypothesis verification theory is used to get the probability density function of operation parameters.The simulation is used to obtain the safety operational abundance and the quatitative risk of test pilot＇s operation is calculated.The subject of automatically pull-up using the robot pilot in the lowest permitted height in GJB 626A-2006 is used as an example to validate the method＇s feasibility and practicability.This study provides a reference to the establishment of operational measures in an extreme condition,and advises for test pilot＇s operation and methods to improve the safety of flight testing.