航空发动机故障特征仿真研究

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。

Fault Analysis and Simulation for Aero -Engine

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.