航空发动机碰摩故障识别可视化技术

Visualization Technology of Aero-engine Rotor-Stator Rubbing Fault Recognition

通过将计算机图形可视化技术引入碰摩故障识别,进行航空发动机碰摩故障识别技术研究。对航空发动机转子叶片和机匣等关键部件进行可视化建模,根据转子和机匣的振动位移,进行转静碰摩部位检测,对碰摩时产生的火花进行模拟,以直观展现碰摩故障。利用有限元碰摩故障仿真实验,进行航空发动机转静碰摩故障识别和模拟验证,结果表明了方法可以有效地识别出碰摩故障,并直观地显示出碰摩效果。

Computer graphics visualization technology is introduced to rubbing fault recognition for the re- search on aircraft engine rubbing fault recognition. First of all, visual graphic models of aero- engine key components such as rotor blade and casing are established; then according to the displacement of the vi- bration of the rotor and the casing, rubbing positions are detected; finally rubbing sparks when rubbing fault appears are simulated so that the rubbing fault can be showed intuitively. Finite element simulation experiments of rubbing fault are used to verified the new method, and the results show that this method can effectively identify the rubbing fault and intuitively show the rubbing effect.