| 垂直起降固定翼飞翼布局无人机过渡飞行纵向稳定性研究 |
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| 引用本文： | 祝小平,王睿,周洲.垂直起降固定翼飞翼布局无人机过渡飞行纵向稳定性研究[J].西北工业大学学报,2011,29(4). |
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| 作者姓名： | 祝小平 王睿 周洲 |
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| 作者单位： | 1. 西北工业大学无人机研究所,陕西西安,710072
2. 西北工业大学无人机特种技术国家级重点实验室,陕西西安,710072 |
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| 摘 要： | 针对由两个主涵道风扇和一个前涵道风扇组成垂直升力部件的垂直起降固定翼飞翼布局无人机,估算出风扇推力和喷流/机翼的诱导气动力,考虑到过渡飞行过程的气动干扰明显和配平控制量变化较大的影响,并且为了防止无人机进入失效陡壁,提出一种预置飞行迎角加速到安全速度后,先关闭主涵道再关闭前涵道风扇的过渡飞行控制策略,分析了无人机平飞速度、涵道风扇入口来流、出口喷流对配平和过渡飞行纵向稳定性的影响,得到了涵道风扇的作用减小了过渡飞行的短周期稳定性、增加了长周期的阻尼的结论.
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| 关 键 词： | 涵道风扇 固定翼 垂直起降 诱导气动力 过渡飞行 稳定性 |
Longitudinal Stability of Vertical-Take-Off-and-Landing (VTOL) Fixed Wing Flying Wing UAV during .Transitional Flight |
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| Zhu Xiaoping,Wang Rui,Zhou Zhou.Longitudinal Stability of Vertical-Take-Off-and-Landing (VTOL) Fixed Wing Flying Wing UAV during .Transitional Flight[J].Journal of Northwestern Polytechnical University,2011,29(4). |
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| Authors: | Zhu Xiaoping Wang Rui Zhou Zhou |
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| Abstract: | Our research concerns the vertical-take-off-and-landing(VTOL) fixed wing flying wing unmanned aerial vehicle(UAV) equipped with two primary ducted fans and a front ducted fan for producing vertical lift.The introduction of the full paper reviews some papers in the open literature and then proposes what we believe to be a promising control strategy,which sections 1 and 2 explain.Their core consists of:(1) we calculate the thrust of a three-ducted fan and aerodynamic force induced by jet/wing;(2) considering ... |
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| Keywords: | unmanned aerial vehicles(UAV) control stability ducted fan fixed wing vertical-take-off-and-landing(VTOL) induced aerodynamic force transitional flight |
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