航空发动机故障特征仿真研究  

Fault Analysis and Simulation for Aero-Engine

作　　者：梁磊[1] 徐洪志[1] 安学利[1] 蒋东翔[1] 

机构地区：[1]清华大学热能工程系,北京100084

出　　处：《计算机仿真》2012年第4期60-63,224,共5页Computer Simulation

基　　金：国家自然科学基金项目(60979014)

摘　　要：航空发动机作为飞机的核心,决定着飞机的性能和安全。发动机一旦出现故障,很可能导致非常严重的航空事故,造成巨大的人员伤亡和经济损失。根据航空发动机故障机理,通过建立航空发动机部件模型对常见的气路故障进行分析与仿真,并根据振动-征兆关系矩阵对振动故障进行仿真,获得了两类故障的特征。目的是为保证航空发动机的安全运行,发动机故障诊断和预测提供依据。Aero-engine determines the performance and the security of the plane as its nucleus.In the event of a fault,it possibly results in a nasty accident with much loss of lives and economy.In this paper,based on the aero-engine＇s mathematic model and vibration-symptom relationship matrix,the common aero-engine gas path faults and vibrations faults were analyzed and simulated to obtain the faults＇ characteristics.The purposes are guaranteeing the safe operating and offering basis for aero-engine fault diagnosis and predictions.

关 键 词：航空发动机 故障仿真 气路故障 振动故障 

分 类 号：V411.8[航空宇航科学与技术—航空宇航推进理论与工程]