The real time measuring system of high speed rotating blade vibration, tip timing sensor, pulse signal sampling system and analysis processing of blade vibration signal are researched.

研究了高速旋转叶片振动实时监测系统，叶端定时传感器、传感器脉冲信号采集电路和叶片振动信号的实时分析和处理。

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The calculation method for radial clearance of turbine blade tip considering the effect of temperature and rotational speed is developed in this paper.

给出了考虑温度和转速影响的涡轮叶尖径向间隙的分析计算方法。

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There are flow separations at the front blade of bulge tip clearance. The high speed area of groove tip clearance increases the secondary flow loss dramatically.

凸型间隙在叶片前缘引起了流动分离，凹型间隙存在一高速区，增加了二次流损失。

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