相控阵超声检测技术在某型飞机撑杆焊缝检测中的试验研究  

Experimental Research Based on Phased Array Ultrasonic Inspection Technology for Weld Joint Inspection of a Type of Aircraft Standing Bar

作　　者：张海兵[1] 孙金立[1] 孙红光[1] 

机构地区：[1]海军航空工程学院青岛校区,青岛266041

出　　处：《航空制造技术》2016年第22期89-91,95,共4页Aeronautical Manufacturing Technology

摘　　要：焊缝是飞机起落架承受交变应力和冲击力较多的部位,常常是疲劳裂纹的多发部位。根据起落架焊缝损伤特点,在比较多种检测方法的基础上,确定了相控阵超声检测方法,制作了与检测件完全一致的对比试块。经建模与试验,相控阵超声检测可以有效地检测焊缝疲劳裂纹,根据试验过程提出了在实践检测中需要解决的问题。Weld joint of aircraft landing gear bear the major alternating stress and impact stress, which often lead to fatigue cracks. According to the feature of landing gear damage and comparison of various detection methods, the ultra- sonic phased array inspection method is chosen, and the reference block is made as the test piece. Ultrasonic phased array inspection can effectively detect the fatigue crack in weld joint through modeling and testing, and the problems that should be solved in practical detection by experiment are pointed out.

关 键 词：相控阵 超声检测 焊缝 

分 类 号：V267[航空宇航科学与技术—航空宇航制造工程]