摘要
针对航空发动机高温结构无损检测问题,综述了其腐蚀损伤检测与评估方法研究进展。从检测机制、信号特征及技术的应用与研究等方面,重点介绍和比较了常用于Ⅰ型热腐蚀(均匀腐蚀)与Ⅱ型热腐蚀(点蚀)两种发动机高温结构中常见热腐蚀损伤的无损检测技术。归纳了已有的基于无损检测手段的强度评估方法。在对比几种检测技术的检测能力的基础上,阐述了无损检测应用于发动机高温结构腐蚀损伤检测的难点和未来发展方向。从现有研究现状来看,目前的无损检测技术难以对发动机高温结构腐蚀损伤的视情维护提供有力支撑。今后应重点在复杂结构的检测、更强检测能力的实现、多技术协调应用等方面开展研究,以提高对发动机高温结构腐蚀损伤的检测评估能力。
The research progress of corrosion damage detection and evaluation methods for aeroengine high-temperature structures was reviewed.The non-destructive testing technologies commonly applied to detect the typeⅠhot corrosion(uniform corrosion)and typeⅡhot corrosion(pitting corrosion)of high-temperature structures were mainly introduced,including the detection mechanism,signal characteristics,application and research.The advantages and limitations of these kinds of testing technologies were enumerated.The established strength evaluation methods based on non-destructive testing were also summarized.The detection capabilities of several testing techniques mentioned were compared,and the difficulties in applying non-destructive testing into corrosion damage detection of hightemperature structures were expounded.Results showed that the current non-destructive testing technologies could hardly provide favourable support for the condition-based maintenance of hightemperature structure corrosion damage of aero-engine.It is suggested to further investigate the detection technologies of complex structures,the realization of stronger detection capability and the coordinated application of multi-technology on structure corrosion of aero-engine.
作者
胡剑辉
齐红宇
李少林
石多奇
杨晓光
HU Jianhui;QI Hongyu;LI Shaolin;SHI Duoqi;YANG Xiaoguang(School of Energy and Power Engineering,Beihang University,Beijing 100191,China;Beijing Key Laboratory of Aero-Engine Structure and Strength,Beihang University,Beijing 100191,China)
出处
《航空动力学报》
EI
CAS
CSCD
北大核心
2024年第10期97-109,共13页
Journal of Aerospace Power
基金
国家自然科学基金(51975027)。
关键词
发动机高温结构
无损检测
强度评估
腐蚀损伤
检测能力
high-temperature structure of aero-engine
non-destructive testing
strength evaluation
corrosion damage
detection capability
作者简介
胡剑辉(1998−),男,硕士生,主要从事航空发动机高温结构强度研究;通信作者:李少林(1983−),副教授,博士,主要从事航空发动机高温结构强度研究。E-mail:lishaolin@buaa.edu.cn。
