飞机机身结构的有效排水是防止飞机结构腐蚀的重要手段之一。文中阐述了机身结构排水设计的原则和技术要求,分析了机身主要区域的排水设计要点,说明了机身结构典型排水路径及其结构,以便为民用飞机排水结构的设计提供参考。 Effective drainage of aircraft fuselage structure is one of the important means to prevent the corrosion of aircraft structure. In this paper, the principles and technical requirements of the drainage design of the fuselage structure are expounded, the drainage design essentials of the fuselage main area are analyzed, and the typical drainage path and structure of the fuselage structure are described to provide a reference for the design of the drainage structure of the civil aircraft.