控制约束下的高超声速飞行器轨迹优化策略

doi:10.12305/j.issn.1001-506X.2025.05.26

Abstract

Abstract:

Due to the characteristics of fast flight speed and strong maneuverability, the research on trajectory planning of hypersonic vehicle needs to consider various influencing factors and constraints such as vehicle fuel and flight safety. This article adopts integrated flight/propulsion coupling vehicle modeling, and proposes an adaptive pseudospectral trajectory optimization strategy based on trajectory design control constraints by studying the control constraints of the vehicle. Simulation comparison shows that the improved trajectory optimization strategy can provide more control margin, enabling the vehicle to climb steadily and relatively during the climb process and has more advantages in overall performance.

Key words: hypersonic vehicle, constraint condition, trajectory design, trajectory optimization, control margin

CLC Number:

V249.1

Xun HUANG, Boyi CHEN, Shouyong PENG, Yanbin LIU, Ben YANG, Haoran PANG. Trajectory optimization strategy for hypersonic vehicle under control constraints[J]. Systems Engineering and Electronics, 2025, 47(5): 1646-1654.

Figures/Tables 18

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References 31

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状态量	气动系数
状态量	C_L	C_D	C_m	C_T
α	一次函数	二次函数	二次函数	一次函数
δ_e	一次函数	二次函数	一次函数	弱关系
ϕ	弱关系	弱关系	弱关系	一次函数

气动系数	拟合优度
C_L	0.990 8
C_D	0.980 4
C_m	0.983 6
C_T	0.947 8

参数	下界	上界	参数	下界	上界
α	－1	6	q	－10	10
γ	－5	5	θ	－10	10

参数	下界	上界
Q/(W/m²)	—	5×10⁵
${\bar q}$/Pa	2.4×10⁴	9.5×10⁴
n_z/g	—	3.5

阶段	初始高度/m	末端高度/m	初始速度/Ma	末端速度/Ma	动压/Pa
等动压爬升段	23 408	25 769	6.5	7.8	95 000
等马赫爬升段	25 769	26 495	6.5	7.8	－

Trajectory optimization strategy for hypersonic vehicle under control constraints

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约束	上界	下界
控制约束/((°)/s)	0.35	－0.35
状态约束/(°)	14	10

规划策略	质量初值/kg	质量终值/kg	燃油消耗/kg	时间消耗/s
轨迹设计	16 680	14 642	2 038	597
轨迹优化	16 680	15 674	1 006	263
改进轨迹优化	16 680	15 469	1 211	318

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