吊舱环控系统的多级流模型故障诊断技术研究  

MFM-Based Diagnostic Technology for the Pod's Environment Control System

作　　者：刘仲宇[1] 田素林[1] 李明[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,长春130033

出　　处：《西安工业大学学报》2011年第4期382-386,共5页Journal of Xi’an Technological University

基　　金：国家"863"项目(2008AA121803);国家重点基础研究发展计划(973计划)资助项目(2009CB72400607)

摘　　要：针对电子设备吊舱环控系统设备间故障耦合的问题,研究了基于多级流模型的故障诊断技术,建立了吊舱环控系统的多级流模型,分析了基于该模型的故障诊断算法和诊断过程,开发了吊舱环控故障诊断系统,结合故障实例,对诊断技术进行了验证.研究结果表明:多级流模型的图形化建模方法,简单的诊断逻辑,使得它具有诊断结果明了和诊断效率高的优点,基于MFM的故障诊断技术能高效地对吊舱环控系统进行故障诊断.In order to solve the problem that the failures of the pdo＇s equipments of the environment control system are coupling, the fault diagnosis of the environment control system based on multilevel flow models（MFM） is studied. An MFM of the environment control system of the pod＇is built,the fault diagnosis algorithm and diagnostic process are given and the fault diagnosis system is designed. The alarm analysis and fault diagnosis based on MFM are validated in a real case. The results show that MFM,with the feature of graphic modeling and simple diagnostic logic, has obvious advantages in the real-time fault diagnosis for the environment control system.

关 键 词：故障诊断 多级流模型 吊舱 环控系统 

分 类 号：V245.3[航空宇航科学与技术—飞行器设计]