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论文:2021,Vol:39,Issue(4):712-720 |
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引用本文： |
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王春阳, 周洲, 王睿, 王科雷. 涵道式垂直起降固定翼无人机纵向稳定性研究[J]. 西北工业大学学报 |
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WANG Chunyang, ZHOU Zhou, WANG Rui, WANG Kelei. Study on longitudinal stability of ducted vertical take-off and landing fixed-wing UAV[J]. Northwestern polytechnical university |
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| 涵道式垂直起降固定翼无人机纵向稳定性研究 |
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| 王春阳, 周洲, 王睿, 王科雷 |
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| 西北工业大学 航空学院, 陕西 西安 710072 |
| 摘要: |
| 针对涵道式垂直起降固定翼无人机飞行过程中的悬停和过渡2个飞行状态，进行了纵向飞行稳定性研究。根据叶素动量理论结合实验数据，建立了基于特征截面计算的共轴双旋翼涵道气动力模型和推力涵道气动力模型，模型参数依照实验数据进行辨识；根据六自由度方程建立带推力涵道偏转的无人机飞行动力学模型；以建立的模型方法对案例无人机进行了悬停和过渡状态的纵向平衡求解和稳定性分析，并与悬停实验结果进行了比较。结果显示所建结合涵道动力模型的无人机飞行动力学模型能够准确地描述此类飞行器的纵向飞行稳定性。 |
| 关键词:
共轴双旋翼
涵道风扇
垂直起降无人机
过渡过程
纵向稳定性
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| Study on longitudinal stability of ducted vertical take-off and landing fixed-wing UAV |
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| WANG Chunyang, ZHOU Zhou, WANG Rui, WANG Kelei |
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| School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China |
| Abstract: |
| The longitudinal flight stability of the ducted vertical take-off and landing fixed-wing UAV during the flight state of hovering and transition is studied. Firstly, based on the Blade-Element Momentum Theory (BEMT) and experimental data, a coaxial dual-rotor ducted aerodynamic model and a thrust ducted aerodynamic model based on characteristic cross-section calculations are established. The model parameters are identified according to the experimental data. Secondly, a UAV flight dynamics model with thrust duct deflection is established according to the six-degree-of-freedom equations. Finally, the case UAV was used to solve the longitudinal balance and stability analysis of hovering and transition state with the established model method, and compared with the hovering experimental results. The results show that the UAV flight dynamics model combined with the ducted dynamic model established in the article can accurately describe the longitudinal flight stability characteristics of this type of aircraft. |
| Key words:
coaxial rotor system
duct fan
vertical take-off and landing aircraft
transition process
longitudinal stability
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| 收稿日期: 2020-11-17
修回日期:
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| DOI: 10.1051/jnwpu/20213940712 |
| 基金项目: 陕西省重点研发计划（2021ZDLGY-09-08）与大院大所创新计划（TC2018DYDS24）资助 |
| 通讯作者: 周洲(1966-),女,西北工业大学教授,主要从事无人机系统总体研究。e-mail:zhouzhou@nwpu.edu.cn
Email：zhouzhou@nwpu.edu.cn |
| 作者简介: 王春阳(1990-),西北工业大学博士研究生,主要从事飞行动力学研究。
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| 作者相关文章 |
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| 王春阳 在本刊中的所有文章 |
| 周洲 在本刊中的所有文章 |
| 王睿 在本刊中的所有文章 |
| 王科雷 在本刊中的所有文章 |
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