弹性支承器振动应力监测与高速转子系统故障诊断

摘要

对中小型航空发动机弹性支承器振动应力测试方法进行研究, 介绍了一种在转子弹性支承器弹条上粘贴应变计来获取转子工作时的振动应力的方法. 该方法通过对弹性支承器振动应力信号进行监测分析, 成功诊断出多种典型转子系统故障, 说明应用弹性支承器振动应力可以进行中小型航空发动机高速转子系统的故障诊断.%In this paper, we research the measurement methods of vibration stress for elastic support of small and medium-sized aero engine, and introduce a test method to obtain rotor vibration stress as applying strain gauges on the elastic support. Several examples show that failures of high-speed rotor system of small and medium-sized aero engine can be diagnosed by applying vibration stress of elastic support.