基于模型的飞控系统安全性分析研究  

Research on model-based safety analysis of flight control system

作　　者：柯宇航 李艳军[1] 曹愈远[1] 张兴成 KE Yuhang;LI Yanjun;CAO Yuyuan;ZHANG Xingcheng(College of Civil Aviation, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China)

机构地区：[1]南京航空航天大学民航飞行学院,江苏南京211106

出　　处：《系统工程与电子技术》2021年第11期3259-3265,共7页Systems Engineering and Electronics

基　　金：南京航空航天大学研究生创新基地(实验室)开放基金(kfjj20200725)资助课题。

摘　　要：针对飞控系统安全性分析问题,提出一种基于系统拓展模型(extended system model,ESM)的安全性分析方法。首先,运用Simulink建立系统名义模型。然后,对名义模型进行故障注入,得到系统扩展模型,观察故障情况下的系统响应并对系统进行安全性分析。最后,选取操纵舵面系统(副翼/方向舵)为例。结果表明,系统故障拓展模型使得模型保持完整性和一致性,能够模拟系统故障多状态模式,保证了安全性分析结果的准确性和完整性。Aiming at the problem of safety analysis of flight control system,a safety analysis method based on extended system model(ESM)is proposed.Firstly,the nominal model of the system is established by Simulink.Secondly,the fault is injected into the nominal model to obtain the ESM,and the system response under the fault condition is observed and the system safety is analyzed.Finally,taking a control surface system(ailerons/rudder)as an example.The results show that the system fault expansion model which keeps the integrity and consistency of the model,can simulate the system fault multi-state mode,and ensures the accuracy and integrity of the safety analysis results.

关 键 词：基于模型的安全性分析 飞控系统 故障注入 系统扩展模型 

分 类 号：V37[航空宇航科学与技术—航空宇航推进理论与工程] N945.12[自然科学总论—系统科学]