某发动机压气机四级转子叶片榫头断裂分析  

Fracture Analysis for Rotor Blade Tenon of an Aeroengine Compressor

作　　者：刘庆瑔 

机构地区：[1]新艺机械厂

出　　处：《材料工程》1997年第6期9-11,共3页Journal of Materials Engineering

摘　　要：对某发动机经８０ｈ试车后四级压气机３５＃转子叶片榫头折断故障做了分析，经金相与扫描电镜观察和模拟试验，使故障再现，分析认为，是加工配合过盈，局部接触应力过大出现微振磨损所致，并提出改进措施。Fracture of 4th rotor blade tenon No 35 of an aeroengine compressor has been analyzed using SEM and simulation test. The results shown that the blade is fatigue fracture caused by fretting between the tenon and tenon gear and the fretting is led by local large contact stress because of interference fit in machining. An improved measures has been proposed to prevent similar accidents.

关 键 词：航空发动机 转子 叶片 失效分析 压气机 折断 

分 类 号：V232.4[航空宇航科学与技术—航空宇航推进理论与工程] V231.95