基于系统动力学飞机气源系统故障分析  

Fault Analysis on the Aircraft Air Supply System Based on System Dynamics

作　　者：孙晨赫 曹湘玲 Sun Chenhe;Cao Xiangling(School of Civil Aviation Maintenance,Shanghai Civil Aviation College,Shanghai 200232,China;School of Aviation Transport,Shanghai Civil Aviation College,Shanghai 200232,China)

机构地区：[1]上海民航职业技术学院民航维修学院,上海200232 [2]上海民航职业技术学院航空运输学院,上海200232

出　　处：《办公自动化》2024年第11期68-71,共4页Office Informatization

基　　金：上海民航职业技术学院2023年科研项目-XJKT-2023-61。

摘　　要：针对飞机气源系统故障难以预先发现,日常维护时难以接近而导致的突发故障问题。文章首先通过分析FMEA数据得到常见的飞机气源系统故障,接着通过系统动力学分析故障的原因及故障相关性,利用故障阈值评估非线性和线性的故障影响效果,克服故障影响表征难题;最后,借助调整气源系统故障温度、压力、流量的触发阈值,通过验证该方法可提前预测故障,预先维修。Based on system dynamics,the analysis on the aircraft air supply system faults addresses the problem of sudden faults caused by the difficulty in detecting and accessing aircraft air supply system faults in advance during the daily maintenance.This article first analyzes FMEA data to obtain the common faults in aircraft air supply systems.Then,through the system dynamics analysis,the causes and correlations of faults are analyzed,and fault thresholds are used to evaluate the effects of nonlinear and linear faults,overcoming the difficulty of characterizing fault effects;Finally,by adjusting the triggering thresholds of the fault temperature,pressure,and flow rate of the air supply sys-tem,the method can be verified to predict the faults in advance and maintenance them in advance.

关 键 词：气源系统 系统动力学 故障阈值 预测故障 预先维修 

分 类 号：V240.2[航空宇航科学与技术—飞行器设计] X949[环境科学与工程—安全科学]