摘要
基于亚轨道飞行器过载、热流、动压峰值集中出现,过载约束成为飞行器返回过程中主要面临的约束这一再入特性,提出再入通道概念,建立再入通道数学模型,以满足不同约束条件下的极限再入飞行仿真轨迹描述再入通道边界。分析和仿真结果表明,可以通过再入通道是否存在来判断再入任务是否可以实现,且再入通道边界参数可作为再入轨迹设计及制导的有效参考值。
Based on the concentration of overload, heat flow, and dynamic pressure peak in the reentry process for a sub-orbital vehicle, and the overload become a key constraint, this paper presents the reentry channel differently formed by the reentry corridor, establishes the channel model, and uses reentry trajectory meeting different constraints to describe the boundary of reentry channel. Analysis and simulation results show that the realized of reentry task can be determined by the existence of reentry channel, and the parameters of reentry channel boundary are effective in the research work of trajectory design and reentry guidance.
出处
《飞行力学》
CSCD
北大核心
2011年第3期60-63,共4页
Flight Dynamics
关键词
亚轨道飞行器
再入通道
任务可行性
轨迹设计
制导
sub-orbital vehicle
reentry channel
task feasibility
trajectory design
guidance
