摘要
超声红外热像技术兼具缺陷定位精准、热像信噪比高、材料适用范围广等特点,在航空材料检测方面已有不俗表现,主要应用于发动机叶片、起落架、机翼、蜂窝夹层等关键部件和结构的缺陷检测。在简要介绍超声红外热像技术原理与系统组成的基础上,从振动特性、生热特性、仿真建模、检测条件、热像处理与缺陷识别、缺陷可检测性和应用试验7个方面概括其主要发展历程,总结技术特点。重点针对航空金属结构材料缺陷和复合材料缺陷检测的应用进行了详细论述。归纳了超声红外热像技术的未来发展趋势,为其在航空材料检测方面的研究应用提供一定的参考借鉴。
Sonic IR imaging enjoys the advantages of precise defect positioning,high thermal SNR(signal to noise ratio),material suitability,etc.It has shown good capabilities of detecting defects in aeronautical materials and key components,such as engine blades,landing gears,wings,honeycomb sandwiched structures,etc.Firstly,the working principle and system configuration of sonic IR imaging are introduced.Then,the development of sonic IR imaging is reviewed from seven main aspects,i.e.,vibration characteristic,heating characteristic,simulation modelling,testing condition,thermal image processing&defect identification,defect detectability,and application.The features of sonic IR imaging are also highlighted.Additionally,a detailed description of defect detection for aeronautical metals and composites is summarized.Finally,the future trends of sonic IR imaging are discussed,which provide certain references for its research and application in testing aeronautical materials.
作者
冯辅周
朱俊臻
李志农
FENG Fuzhou;ZHU Junzhen;LI Zhinong(Army Academy of Armored Forces,Beijing 100072,China;Key Laboratory of Nondestructive Testing of Ministry of Education,Nanchang Hangkong University,Nanchang 330063,China)
出处
《航空制造技术》
CSCD
北大核心
2022年第20期36-53,共18页
Aeronautical Manufacturing Technology
基金
国家自然科学基金(51875576,52005510)
无损检测技术教育部重点实验室开放基金(EW201980445)
现代测控技术教育部重点实验室开放课题(KF20211123204)。
关键词
无损检测
主动热像
超声红外热像
航空材料
缺陷检测
Nondestructive testing
Active thermography
Sonic IR imaging
Aeronautical material
Defect detection
