基于多信号模型的机载设备综合诊断方法研究  

Integrated Fault Diagnostic Method Research of Airborne Equipment Based on Multi-signal Model

作　　者：宋丽琼[1] 宋东[1] 李经委[1] 

机构地区：[1]西北工业大学航空学院,西安710072

出　　处：《计算机测量与控制》2014年第4期975-978,共4页Computer Measurement &Control

摘　　要：对机载设备综合诊断的信息来源和基于模型的诊断方法进行了分析,重点研究了基于多信号模型的故障诊断方法;给出了机载设备多信号模型的建模方法,研究了基于该模型的可达性和相关性分析方法,及故障-测试相关性矩阵的获取方法;在此基础上,详细设计了综合故障诊断方案和流程;并以机载气象雷达为实例,建立了该设备的多信号模型及测试-相关性矩阵,实现了气象雷达的综合故障诊断;验证了基于多信号模型的机载设备综合诊断方法的可行性。The information source of airborne equipments comprehensive diagnosis and the diagnostic method based on model are analyzed. The fault diagnostic method based on multi--signal model is detailed researched . The modeling approach of multi--signal model of airborne equipment is given. The reachable and correlative method based on the model and the acquiring method of fault-- test correlative matrix are researched. On this ba- sis, integrated fault diagnostic program and procedure is detailed designed. For instance airborne weather radar, the integrated fault diagnostic model of multi--signal and fault--test correlative matrix are built. The integrated fault diagnostic program of airborne weather radar is completed. The feasibili- ty of airborne equipments＇ integrated fault diagnostic method based on multi--signal model is verified.

关 键 词：综合故障诊断 多信号模型 机载设备 故障-测试相关性矩阵 

分 类 号：V243.2[航空宇航科学与技术—飞行器设计]