飞机燃油箱内漏故障分析  

Fault analysis about aircraft fuel tank internal leakage

作　　者：王康 WANG Kang(Shanghai Aircraft Customer Service Co.,Ltd.Shanghai 200241,China)

机构地区：[1]上海飞机客户服务有限公司,上海200241

出　　处：《民用飞机设计与研究》2024年第3期6-10,共5页Civil Aircraft Design & Research

摘　　要：民航飞机燃油箱在设计上采用一般对称布置的形式,燃油箱内漏会导致两侧油箱油量存在差异,在飞行中如果油量差异扩大到一定值,会触发燃油量不平衡告警,需要机组依据飞行机组操作手册非正常程序操作,消除异常告警信息,影响机组注意力,不利于飞行安全。针对某型飞机在航线运营过程中出现燃油量不平衡告警信息,首先介绍燃油系统基本架构,然后基于故障树和增强型机载飞行记录器(enhanced airborne flight recorder,简称EAFR)数据,分析燃油不平衡告警原因,最后提出不影响航线运营的临时解决措施及后续优化建议,为故障处理和飞机设计改进提供参考。Fuel tanks of civil aircraft are generally designed with a symmetrical layout,where internal leakage can result in difference in fuel quantities between the two sides.During flight,if the fuel imbalance grows to a certain threshold,the fuel imbalance alarm will be triggered.It requires the crew to eliminate the abnormal alarm information operate according to the abnormal procedures in the flight crew operation manual,which affects the crew's attention and is not conducive to flight safety.For the fuel imbalance alarm information of a certain type of aircraft during route operation.Firstly,the basic structure of the fuel system is introduced.Then,the causes of the fuel imbalance alarm were analyzed based on fault tree and enhanced airborne flight recorder(EAFR)data.Finally,temporary solutions that do not affect route operation and subsequent optimization suggestions are put forward.To provide the reference for troubleshooting and aircraft design optimization.

关 键 词：燃油量不平衡 内漏 故障树 EAFR数据 

分 类 号：V267[航空宇航科学与技术—航空宇航制造工程]