【作者】 段发阶； 方志强； 李志华； 向玥；

【Author】 DUAN Fajie, FANG Zhiqiang, LI ZhihuaA,XIANG YueState Key Laboratory of Precision Testing Techniques and Instruments, Tianjin University, Tianjin, 300072

【机构】 天津大学精密测试技术及仪器国家重点实验室；

【摘要】 高速旋转叶片振动实时检测技术是电力工业、能源工业、航运业尤其是航空亟待解决的难题,传统的接触式测量方法很难做到同时监测同级的所有叶片的振动情况,因此国外一直在致力研究非接触式旋转叶片振动测量技术-叶尖定时测量技术。本文依托国防预研项目“非接触式旋转叶片振动测量技术研究”,设计了一种新式的光线束式叶尖定时传感器,满足了旋转叶片振动系统对叶片振动信号拾取的要求。文中详细介绍了该叶尖定时传感器的组成结构以及工作原理,并对其作为整个系统核心部件的可靠性通过相应的实验进行了验证。更多还原

【Abstract】 It is a problem desiderating solution for power industry, energy industry, shipping especially aviation to real-time measure the high-speed rotating blade vibration. The conventional contacting measurement technique is difficult to measure the vibration of all blades in one stage at the same time. So foreign scholars have applied them to research a new non-contact measurement technique using blade tip-timing. A new type of tip-timing sensor using fiber bundle is designed in this paper to satisfied with requirement of detecting the blade vibration signals in the blade vibration measurement system relying on the national defense pre-research project “The research of non-contact measurement technique of rotating blade vibration”. The principle and component of tip-timing sensor is described in this paper, what’s more the dependability of it as the vital part of the whole system is validated by correspond experiment.更多还原