| 增程飞行器高超声速飞行的动态特性 |
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| 引用本文： | 陈农,李潜.增程飞行器高超声速飞行的动态特性[J].飞行力学,2009,27(2). |
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| 作者姓名： | 陈农 李潜 |
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| 作者单位： | 中国航天空气动力技术研究院第一研究所,北京,100074 |
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| 摘 要： | 研究了增程飞行器高超声速飞行时的动态特性.短程导弹和火箭弹等高超声速飞行来源于增程的实际需要,从超声速到高超声速飞行所遇到的主要飞行动力学问题是,尽管在增程前低超声速时具有良好稳定性,但在高超声速飞行中会丧失稳定性并导致复杂的锥动.通过飞行和风洞实验表明:高超声速飞行时增程飞行器固有的横侧向稳定特性丧失,带有弱滚转阻尼的不稳定荷兰滚振荡将导致滚转-偏航耦合,此外还存在由耦合导致的轻微不稳定拟周期模态和滚动共振.
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| 关 键 词： | 增程火箭弹 超声速/高超声速飞行 锥动 滚转-偏航耦合模态 不稳定拟周期模态 |
Dynamic Characteristics of Hypersonic Flight for Increasing Range Vehicles |
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| CHEN Nong,LI Qian.Dynamic Characteristics of Hypersonic Flight for Increasing Range Vehicles[J].Flight Dynamics,2009,27(2). |
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| Authors: | CHEN Nong LI Qian |
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| Institution: | The First Research Institute;Institute of China Academy of Aerospace Aerodynamics;Beijing 100074;China |
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| Abstract: | The purpose of this paper is to study the dynamic characteristics of increasing range vehicles that will enable a hypersonic flight.The paper first show hypersonic flight of short range missiles and rocket projectiles derived from practical considerations of increasing range.Then it reviews major flight dynamic problems encountered in high speed flight from supersonic to hypersonic,namely,during hypersonic flight these vehicles lose stability which leads to flight trajectory exhibited complex coning motions... |
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| Keywords: | increasing range vehicles supersonic/hypersonic flight coning motion roll-yaw-coupling mode unstable aperiodic mode |
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