能量状态法在高速飞行器上的应用  

Application of energy state method to hypersonic vehicles

作　　者：柳青 杨胜江 刘越 LIU Qing;YANG Shengjiang;LIU Yue(School of Aeronautical Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;Beijing Institute of Space Technology, Beijing 100074, China;College of Astronautics, Northwestern Polytechnical University, Xi′an 710072;College of Astronautics, Harbin Institute of Technology, Harbin 150001, China)

机构地区：[1]北京航空航天大学航空科学与工程学院,北京100191 [2]北京空天技术研究所,北京100074 [3]西北工业大学航天学院,陕西西安710072 [4]哈尔滨工业大学航天学院,黑龙江哈尔滨150001

出　　处：《哈尔滨工程大学学报》2021年第3期388-393,共6页Journal of Harbin Engineering University

基　　金：国家自然科学基金青年科学基金项目(61603056).

摘　　要：为了研究高超声速飞行器的最省燃油飞行轨迹和最大飞行包线范围问题,本文对能量状态法进行改进。传统的能量状态法仅考虑飞行器的质点模型,不对飞行器的姿态进行考虑,本文在传统能量状态法的基础上引入姿态运动,可以进一步分析飞行器姿态对性能的影响。分析了高超声速飞行器的气动模型,并验证了能量状态求解的飞行包线的准确性。采用改进能量状态法分析了迎角对飞行轨迹和燃油消耗的影响,并设计爬升轨迹。结果表明:采用改进能量状态获得高超声速飞行器的飞行包线范围具有一定的可行性,相较于参考轨迹节省了1.87 t的燃油。In order to study the most fuel-efficient flight trajectory and maximum flight envelope range of a hypersonic vehicle,the energy state method is improved upon in this paper.The traditional energy state method only considers the mass point model of the aircraft and does not consider flight attitude.Based on the traditional energy state method,attitude motion is introduced in this paper,and the effect of attitude on flight performance can be further analyzed.An aerodynamic model of the hypersonic vehicle is analyzed,and the accuracy of the flight envelope obtained by the energy state method is verified.Finally,the improved energy state method is used to analyze the effects of angle of attack on the flight trajectory and fuel consumption,and a climb trajectory is designed.The results show that it is feasible to obtain the flight envelope range of the hypersonic vehicle by using the improved energy state method,and that the method saves 1.87 t of fuel compared with the reference trajectory.

关 键 词：高超声速飞行器 飞行包线 最省燃油爬升轨迹 轨迹设计 能量状态法 气动模型 火箭基组合动力 涡轮机组合动力 

分 类 号：V19[航空宇航科学与技术—人机与环境工程]