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某型发动机篦齿盘均压孔在使用过程中易产生裂纹,从而对发动机的使用、寿命及飞机的正常飞行构成严重威胁。研究特殊的涡流检测方法对外场在役发动机篦齿盘均压孔裂纹进行原位检测,对发动机的安全使用具有重要的意义。
One type of engine labyrinth gear pressure plate hole cracks easily during use, thus the use of the engine, life expectancy and the aircraft’s normal flight pose a serious threat. It is of great significance to study the special eddy current testing method to detect in-situ cracks in pressure gash of engine in-service engine.