涡轮叶片的全息干涉振型分析

本文叙述了激光全息干涉时间平均法的测振原理、实验装置和试验方法，并对航空发动机压气机叶片和自由涡轮一级、二级叶片的振型进行了测量。试验结果表明过种方法用于测量叶片的复杂振型是十分可靠的。

Analysis of vibration type of holographic interference in the turbine blade

In this paper,principle of vibrational measurement using time-mean method of laser holographic interfernce,experimeutal device and teat method are described. The vibration types of compressor blade in aircraft engine and first-stage and two-stage blades of free turbine are measured, The experimental results demonstrate that this way is extremely reliable for measuring complex vibration type of blede.