吸气式电推进系统进气道性能多目标优化研究  

Inlet Multi-Objective Optimization for Air-Breathing Electric Propulsion

作　　者：夏晨希 王子祺 胡鹏 姚兆普[2,3] 刘旭辉 XIA Chenxi;WANG Ziqi;HU Peng;YAO Zhaopu;LIU Xuhui(Beihang University,Beijing 100191,China;Beijing Institute of Control Engineering,Beijing 100094,China;Beijing High Efficiency and Green Aerospace Propulsion Engineering Technology Research Center,Beijing 100094,China)

机构地区：[1]北京航空航天大学,北京100191 [2]北京控制工程研究所,北京100094 [3]北京市高效能及绿色宇航推进工程技术研究中心,北京100094

出　　处：《空间控制技术与应用》2025年第1期16-24,共9页Aerospace Control and Application

基　　金：国家自然科学基金资助项目(52372373);北京控制工程研究所开放基金课题(LabASP-2021-02);北京市科技新星计划资助项目(20240484718)。

摘　　要：吸气式电推进(air-breathing electric propulsion,ABEP)系统使用超低轨道大气作为工质,可突破推进剂携带量对卫星使用寿命的限制瓶颈,是超低轨卫星实现长期驻留的关键技术途径之一.本文采用直接模拟蒙特卡罗(direct simulation Monte Carlo,DSMC)计算方法,对二维的ABEP进气道模型进行模拟.设定壁面碰撞模型为完全漫反射,在进气道的进口直径保持定值的前提下,改变进气道的长纵比、出口锥角、栅格长度和栅格层数,以分别探究这些影响因素单一作用下的进气道性能变化规律.在单一影响规律的前提下,利用遗传算法进行多目标优化,得到符合设计要求的高性能进气道设计参数,通过权重分配实现了典型高度下进气道设计中收集效率与压缩比的最优解.本研究对大气收集器产品的工程化应用具有指导意义.The low orbital altitude of the near-Earth satellite makes the satellite have higher detection accuracy.However,the service life of the satellite is restricted by the drag caused by the satellite not completely leaving the atmosphere.The air-breathing electric propulsion system is used to extend the life of the satellite.The direct simulatiou Monte Carlo(DSMC)calculation method is used to simulate a two-dimensional air-breathing electric propulsion model.The wall impact model is set as completely diffuse reflection.On the premise that the inlet diameter of the inlet is maintained at a constant value,the inlet long-to-longitudinal ratio,outlet cone angle,grid length and grid layer number are changed to explore the inlet performance variation rule under the single action of these influencing factors.Under the premise of single influence rule,genetic algorithm is used to carry out multi-objective optimization,and the design parameters of high-performance inlet meeting the design requirements are obtained,and the optimal design method of inlet at typical height is studied.

关 键 词：超低轨道卫星 直接模拟蒙特卡洛 吸气式电推进 多目标优化 

分 类 号：V430[航空宇航科学与技术—航空宇航推进理论与工程]