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论文:2021,Vol:39,Issue(3):650-659 |
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引用本文： |
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李亚东, 张钧尧, 杨凤田, 陈永亮. 某型电动飞机大迎角失速/尾旋特性及试飞研究[J]. 西北工业大学学报 |
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LI Yadong, ZHANG Junyao, YANG Fengtian, CHEN Yongliang. Research on high attack angle stall and spin characteristics with flight test of a general electric aircraft[J]. Northwestern polytechnical university |
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| 某型电动飞机大迎角失速/尾旋特性及试飞研究 |
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| 李亚东1, 张钧尧1, 杨凤田1, 陈永亮2 |
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1. 沈阳航空航天大学 辽宁通用航空研究院, 辽宁 沈阳 110136;
2. 南京航空航天大学 航空宇航学院, 江苏 南京 210016 |
| 摘要: |
| 飞机在大迎角飞行时，其表面气流发生严重分离，气动力的线性变化遭到破坏，操纵性和稳定性出现不同程度下降，导致飞机失速或进入尾旋，失速特性与尾旋特性直接影响飞机的安全性。为了分析失速/尾旋特性，以某型大展弦比双座电动飞机为例，在风洞试验数据基础上建立了全量六自由度非线性大迎角动力学模型，经过数值仿真计算和分析，获取了某型电动飞机在大迎角下的失速/尾旋特性，根据仿真计算的失速/尾旋特性现象，进行飞行试验，验证了数值仿真的可靠性，为以后分析大展弦比系列电动飞机非线性大迎角下的失速/尾旋特性及试验研究提供参考。 |
| 关键词:
大迎角
失速特性
尾旋
数值仿真
风洞实验
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| Research on high attack angle stall and spin characteristics with flight test of a general electric aircraft |
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| LI Yadong1, ZHANG Junyao1, YANG Fengtian1, CHEN Yongliang2 |
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1. Liaoning Genral Aviation Acadeing, Shengyang Aerospace University, Shenyang 110136, China;
2. College of Aerospace Engineering, Nanjing University of Aeronations and Astronautics, Nanjing 210016, China |
| Abstract: |
| When the aircraft is flying at high angle of attack, the local separation of the air flow on the surface of the aircraft, the linear change of aerodynamic force is destroyed, and the maneuverability and stability are reduced to varying degrees, resulting in the aircraft stalling or entering the spin. The stall characteristics and spin characteristics directly affect the safety of the aircraft. In order to analyze the stall and spin characteristics, a full-scale 6-DOF nonlinear high angle of attack dynamic model is established for a two-seater electric high aspect ratio aircraft based on the wind tunnel test data. The stall characteristics of an electric aircraft at high angle of attack are obtained by numerical simulation and analysis. According to the stall characteristics of simulation calculation, flight test is carried out to verify the reliability of numerical simulation, which provides reference for the later analysis of stall/spin test of large aspect ratio series electric aircraft at nonlinear high angle of attack. |
| Key words:
high attack angle
stall characteristic
spin
numerical simulation
wind tunnel tests
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| 收稿日期: 2020-10-14
修回日期:
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| DOI: 10.1051/jnwpu/20213930650 |
| 基金项目: 辽宁省教育厅基金项目（JYT19005）资助 |
| 通讯作者:
Email： |
| 作者简介: 李亚东(1978-),沈阳航空航天大学高级工程师,主要从事飞行器性能分析与优化研究。
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