Application of energy state method to hypersonic vehicles

被引：0
|
作者：
Liu Q. [1 ,2 ]
Yang S. [2 ,3 ]
Liu Y. [4 ]
机构：
[1] School of Aeronautical Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing
[2] Beijing Institute of Space Technology, Beijing
[3] College of Astronautics, Northwestern Polytechnical University, Xi'an
[4] College of Astronautics, Harbin Institute of Technology, Harbin
来源：
Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University | 2021年 / 42卷 / 03期
关键词：
Aerodynamic model; Energy state method; Flight envelop; Hypersonic vehicle; Rocket based combined cycle; The most fuel-efficient climb trajectory; Trajectory design; Turbine combined power;
D O I：
10.11990/jheu.201909087
中图分类号：
学科分类号：
摘要：
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. Copyright ©2021 Journal of Harbin Engineering University.
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页码：388 / 393
页数：5
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