民机飞控系统故障后飞行风险评估方法研究  

Study on risk assessment method with civil aircraft flight control system failed

作　　者：杨建忠 张璟 杨士斌 YANG Jian-zhong;ZHANG Jing;YANG Shi-bin(Tianjin Key Laboratory of Civil Aircraft Airworthiness and Maintenance,CAUC,Tianjin 300300,China)

机构地区：[1]中国民航大学天津市民用航空器适航与维修重点实验室,天津300300

出　　处：《飞行力学》2018年第5期77-81,共5页Flight Dynamics

基　　金：中央高校基本科研业务费项目(3122015C026)

摘　　要：为了对民机适航验证中飞控系统操纵面故障后的风险进行定量评估,建立了故障风险评估模型,综合考虑驾驶员操纵、大气环境的随机性和不同故障情况的影响差异,建立了人机闭环系统仿真模型。通过Monte-Carlo仿真计算不同工况下的故障后飞行风险概率,并对模型中随机参数的敏感性进行分析。最后以单侧升降舵卡阻故障为例,计算了不同飞行速度和不同飞行高度下的风险概率值,分析了不同随机参数的敏感性,并给出了风险控制策略。In order to assess the flight risk after civil aircraft flight control system failure,a failure risk assessment model is developed. The randomness of pilot＇s manipulation,environment and the different influences of different failures were taken into consideration. A pilot-aircraft closed-loop simulation model was built,the risk probability of different flight situation was calculated according to Monte-Carlo simulation results and the sensitivity of random parameters was evaluated. Finally,taking the one-side elevator jamming failure flight test as an example,the risk probabilities at different flight situation were calculated,and the risk reduction action was proposed according to the result of parameter sensitivity analysis.

关 键 词：人机闭环系统 飞行风险 适航 仿真 

分 类 号：V249.1[航空宇航科学与技术—飞行器设计] V328