民用飞机吊挂应急断离设计与验证  

Design and verification of emergency break-away for civil aircraft pylon

作　　者：万雨和 郭占鹏 陈晓琨 WAN Yuhe;GUO Zhanpeng;CHEN Xiaokun(Shanghai Aircraft Design and Research Institute,Shanghai 201210,China)

机构地区：[1]上海飞机设计研究院,上海201210

出　　处：《民用飞机设计与研究》2025年第1期42-48,共7页Civil Aircraft Design & Research

摘　　要：对于翼吊飞机,吊挂位于发动机短舱和外翼之间,用于悬挂发动机、提供系统安装空间和减少气动阻力。根据可生存的坠撞统计数据,在发生坠撞情况后,油箱起火造成的死亡人数比坠撞本身造成的死亡人数多。在发生坠撞情况时,其发动机短舱可能发生触地,若不及时抛离发动机,可能发生机翼油箱撕裂造成漏油起火的情况。故适航条款规定在发生超载着陆时,发动机吊挂安装必须设计成超载断离,以保护机翼油箱完整性,避免因油箱漏油引起火灾。依据相关的适航条款要求,对吊挂应急断离装置进行验证研究,提出了完整分析和试验验证方法,并通过应急断离试验验证某型飞机吊挂应急断离销满足适航要求,为民用飞机吊挂应急断离的设计和符合性验证提供参考。For wing-mounted aircraft,the pylon is locate between nacelle and the outer wing,which is used to sus⁃pend the engine,provide system installation space and reduce aerodynamic drag.According to survivable crash statistics,after a crash,the number of deaths caused by fuel tank fires is higher than the number of deaths caused by the crash itself.In the event of a crash,the nacelle may touch the ground,and if the engine is not thrown away in time,it may cause tearing of the wing fuel tank,resulting in oil leakage and fire.Therefore,the airworthiness provisions stipulate that in the event of an overloaded landing,the pylon must be designed to disconnect in case of overload,in order to protect the integrity of the wing fuel tank and prevent oil leakage from causing fires.This paper mainly relies on relevant airworthiness provisions to verify and study emergency break-away for the pylon,proposes a complete analysis and experimental verification method,and verifies through emergency break-away tests that a certain type of aircraft pylon emergency break-away pin meets airworthiness requirements,providing a reference for the design and compliance verification of civil aircraft pylon emergency break-away.

关 键 词：吊挂 应急断离 适航 试验验证 

分 类 号：V225.1[航空宇航科学与技术—飞行器设计]