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飞行器机电维修与管理工程辅修专业毕业

论文

题目：飞机机翼的主体结构维修分析 [摘要]

本论文主要阐述了飞机机翼的主体结构（翼梁、蒙皮及复合材料）的损伤及修理方法，其中还包括翼梁的受载特点、翼梁的布置，超声波无损探伤所需设备与工作原理以及校核强度。从而在机翼出现故障后，能按照适当的修理方法，准确无误地对结构进行修理，以保证机翼能在飞机上发挥其应有的性能。

[关键词]

机翼 翼梁 探伤 修复方法

[Abstract]

This paper describes the main structure of the aircraft wing(wing spar,skin and composite materials)of damage and repair methods,which also includes the characteristics under load,the arrangement of the wing spar beam, ultrasonic nondestructive testing equipment and work required principle and checking strength.Resulting in failure of the wing, in accordance with the appropriate repair methods, accurate structural repairs to ensure that the wing can play its proper performance on aircraft.

[key words]

Airfoil Spar Flaw detection Repair method

目录

1 前言 ..................................................................................................................................... 1 2 飞机翼梁的结构分析 ......................................................................................................... 1 2.1翼梁的结构组成 ................................................................................................................ 1 2.1.1翼梁缘条 ........................................................................................................................ 2 2.1.2翼梁腹板 ........................................................................................................................ 2 2.2 翼梁的受载特点 ............................................................................................................. 2 2.3 翼梁的布置 ..................................................................................................................... 3 2.4力的传递情况 .................................................................................................................... 4 2.4.1剪力的传递 .................................................................................................................... 4 2.4.2 弯矩的传递 ................................................................................................................... 4 2.4.3 扭矩的传递 ................................................................................................................... 4 3 故障诊断 ............................................................................................................................. 5 3.1目测法 ................................................................................................................................ 5 3.2 超声波探伤 ..................................................................................................................... 5 3.2.1超声波探伤设备 ............................................................................................................ 5 3.2.2超声波探伤的工作原理 ................................................................................................ 6 4 故障修理 ............................................................................................................................. 6 4.1翼梁缘条的修理 ................................................................................................................ 6 4.1.1缺口的修理 .................................................................................................................... 7 4.1.2裂纹的修理 .................................................................................................................... 7 4.1.3断裂的修理 .................................................................................................................... 8 4.2 翼梁腹板的修理 ........................................................................................................... 11 4.2.1裂纹的修理 .................................................................................................................. 12 4.2.2破孔的修理 .................................................................................................................. 12 4.2.3切割的修理 .................................................................................................................. 13 4.3 蒙皮损伤修理 ............................................................................................................... 14 4.3.1蒙皮压坑和变形的修理 .............................................................................................. 14 4.3.2蒙皮划伤和擦伤的修理 .............................................................................................. 15 4.3.3蒙皮裂纹的修理 .......................................................................................................... 15 4.3.4蒙皮破孔的修理 .......................................................................................................... 15 4.4 复合材料结构损伤修理 ............................................................................................... 17 4.4.1飞机复合材料结构损伤修理的技术要求 .................................................................. 18 4.4.2层压板损伤修理 .......................................................................................................... 18 4.4.3蜂窝夹芯结构损伤修理 .............................................................................................. 19 参考文献 ................................................................................................................................. 21