民用飞机辅助燃油系统加油通气性能分析  

Analysis on the performance of refueling and venting system in auxiliary fuel system for civil aircraft

作　　者：朱文君 张锦 ZHU Wenjun;ZHANG Jin(Shanghai Aircraft Design&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》2024年第3期88-94,共7页Civil Aircraft Design & Research

摘　　要：民用飞机新增辅助燃油系统设计更改涉及飞机多个专业,系统安装环境较复杂且交联接口较多,需要考虑多专业输入以及输出参数的耦合。例如,压力加油子系统需要同时考虑加油流量和通气流量的适配性。基于仿真软件FloMASTER提出一种验证方式,以辅助油箱压力加油子系统和辅助油箱通气子系统作为分析对象,研究在不同加油压力下油箱内的气体压力变化、通气所需流量和油箱的承压能力,通过仿真结果判断系统是否符合设计指标。主要研究结论如下:1)辅助燃油系统在地面正常加油时,油箱的通气管路设计满足通气需求;2)辅助燃油系统在地面压力加油时辅助油箱内的压力不会超出最大设计工作压力;3)辅助燃油系统在地面加油切断失效(极限工况)时,辅助油箱内压力和基本油箱内压力均能满足系统设计压力范围。The design of auxiliary fuel system for civil aircraft involves several systems on aircraft which is related to complicated installing environment and the coupling of inputs and outputs for multiple systems.As the design of refueling system,it needs to consider the coupling of refueling flow and venting flow.Based on the software FloMASTER,a validation method is proposed in this paper which takes the refueling and venting system of auxiliary fuel system as the study objects.The main research content is based on the simulation including the change of gas pressure in fuel tank under different refueling pressure,the requirement of the venting flow and the pressure capacity of fuel tanks,which will be evaluated whether it meets the design specifications or not.The results show that:1)the capacity of venting tubes in fuel tanks meets the requirement of venting flow while the auxiliary fuel system is refueled on the ground;2)the gas pressure in auxiliary fuel tank will not over the maximum design pressure value of auxiliary fuel tank during ground refueling;3)the pressure in both auxiliary fuel tank and original fuel tank will meet the design pressure under limiting condition(the failure of ground refueling cutting-off).

关 键 词：飞机 辅助燃油 仿真 压力加油 通气 

分 类 号：V222[航空宇航科学与技术—飞行器设计]