轮毂R区阵列涡流检测试验研究  

作　　者：蒋诗超 

机构地区：[1]国营芜湖器械厂,安徽芜湖241007

出　　处：《科技创新与应用》2025年第7期54-57,共4页Technology Innovation and Application

摘　　要：飞机轮毂R区是结构材料厚薄变化的过渡区,容易发生应力集中,而应力集中部位是裂纹的发源地,导致飞机结构件承载性能的降低,严重威胁飞机的飞行安全。轮毂R区缺陷的检测一直是无损检测领域的热点问题,该文采用阵列涡流检测技术对飞机轮毂R区裂纹缺陷开展检测,通过设计并制作不同方向的裂纹试块,分析阵列涡流成像特征;研究不同深度裂纹的成像变化规律,优化检测工艺参数。试验结果表明,当激励频率为1 MHz,能有效检出深度为0.2 mm的R区表面裂纹,并能对缺陷进行精准定位,研究成果可用于指导飞机轮毂的工程实践检测。The R-zone of the aircraft hub is a transition zone where the thickness of structural materials changes,which is prone to stress concentration.The stress concentration part is the origin of cracks,which leads to a reduction in the load-bearing performance of aircraft structural parts and seriously threatens the flight safety of the aircraft.The detection of defects in the R-zone of wheel hubs has always been a hot issue in the field of non-destructive testing.In this paper,array eddy current testing technology is used to detect crack defects in the R-zone of aircraft hubs.By designing and manufacturing crack test blocks in different directions,the array eddy current imaging characteristics are analyzed;Study the changing laws of imaging cracks with different depths and optimize the inspection process parameters.The test results show that when the excitation frequency is 1 MHz,surface cracks in the R-zone with a depth of 0.2 mm can be effectively detected and the defects can be accurately positioned.The research results can be used to guide the engineering practice inspection of aircraft hubs.

关 键 词：轮毂R区 阵列涡流 激励频率 工艺 表面裂纹 

分 类 号：V267[航空宇航科学与技术—航空宇航制造工程]