目录摘要.............................................................................11飞机的概述.....................................................................22机翼部件介绍...................................................................32.1翼刀.....................................................................32.2前缘缺口.................................................................32.3前缘锯齿.................................................................32.4纵向骨架.................................................................32.5横向骨架.................................................................43飞机翼梁的结构.................................................................53.1翼梁的结构组成...........................................................53.1.1翼梁缘条............................................................63.1.2翼梁腹板............................................................63.2机翼翼梁承受的疲劳载荷...................................................63.3翼梁的受载特点...........................................................73.4翼梁的布置...............................................................84飞机机翼翼粱故障诊断..........................................................94.1超声波探伤...............................................................942超声波探伤设备...........................................................94.3超声波探伤的工作原理....................................................104.4超声波探伤主要特性......................................................104.5超声波探伤作用..........................................................104.6超声波常见探头型号......................................................115飞机机翼翼粱故障分析..........................................................135.1疲劳破坏的内因..........................................................135.2疲劳破坏的外因..........................................................135.3飞机机翼服役环境........................................................136飞机机翼翼粱的故障修理.......................................................146.1翼梁缘条的修理.....................................