【摘要】 采用基于反射式光纤工作原理的新型光纤束式叶尖定时传感器,研制了涡轮机高速旋转叶片振动监测系统,能够高效地收集叶尖定时信号,配合后续的光电转换、数据采集和数据分析,实现了高速旋转叶片的实时振动检测。在现场高速模拟转子的实时监测实验中,该系统的工作性能良好,得到的结果与同时进行监测的应变片实验结果基本一致,分析的异步振动阶次和频率也基本符合,为发动机的在线监测奠定了基础。更多还原

【Abstract】 A vibration monitoring system for high-speed rotating blades of turbine using tip-timing sensors is introduced.The tip-timing sensors based on the the principle of reflective fiber can collect tip-timing signals with higher performace.Together with followed optical-electrical transform,data collection and analysis,the real-time vibration detection for high-speed rotating turbine blades is realized by this system.As a result the system worked best at the real-time experiment on high-speed simulated rotor.And the analyzed result including the asynchronous vibration order and frequency by strain gauge are almost completed coherence with the ones by the system.It will improve the performance of system for the successful appliance in real-time measurement for compressor blades.更多还原