某型飞机起落架法兰盘螺栓牙底裂纹超声波检测  

Ultrasonic Testing of Cracks on the Bottom of the Bolt Tooth of the Landing Gear Flange of a Certain Type of Aircraft

作　　者：杨庆峰 马大勇 张国华 臧云飞 YANG Qingfeng;MA Dayong;ZHANG Guohua;ZANG Yunfei(Department of Aviation Mechanical Engineering and Command,Naval Aeronautical University Qingdao Campus,Qingdao 266041,China;Qingdao Institute of Product Quality Inspection,Qingdao 266000,China)

机构地区：[1]海军航空大学青岛校区航空机械工程与指挥系,山东青岛266041 [2]青岛市产品质量检验研究院,山东青岛266000

出　　处：《无损探伤》2024年第3期40-43,共4页Nondestructive Testing Technology

摘　　要：为检测某型飞机起落架法兰盘两型螺栓牙底裂纹缺陷回波,通过普通超声A扫检测方法,借助专用探头和阶梯试块,开展了螺栓超声检测研究工作,获得了光杆台阶波、裂纹回波、开口销孔回波图像,并与磁粉检测进行了对比分析,为制定该类螺栓无损检测工艺,开展飞机起落架法兰螺栓超声原位检测研究奠定基础。In order to detect the flaw echo of two type bolt tooth bottom cracks on the landing gear flange of a certain aircraft,the bolt Ultrasonic testing research work was carried out through the ordinary ultrasonic A-scan testing method,with the help of special probes and step test blocks,and the images of smooth rod step wave,crack echo,and split pin hole echo were obtained,which were compared with the magnetic trace display formed by magnetic particle testing,and could be used to develop the nondestructive testing process for such bolts,lay the foundation for conducting ultrasonic in-situ testing research on aircraft landing gear flange bolts.

关 键 词：螺栓 缺陷回波 磁痕显示 

分 类 号：TG115.28[金属学及工艺—物理冶金]