飞机遭遇尾涡的安全性分析

韩红蓉; 李娜; 魏志强

doi:10.19818/j.cnki.1671-1637.2012.01.008

飞机遭遇尾涡的安全性分析

doi: 10.19818/j.cnki.1671-1637.2012.01.008

1.
中国民航大学空中交通管理学院，天津 300300
2.
中国民航科学技术研究院，北京 100028

基金项目:

国家自然科学基金项目 60832012

中央高校基本科研业务费专项资金项目 ZXH2010D013

详细信息

作者简介:
韩红蓉（1 978-），女，内蒙古巴彦淖尔人，中国民航大学讲师，从事飞行性能与安全研究

中图分类号: V328
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出版历程
- 刊出日期: 2012-02-25

Safety analysis of aircraft encountering wake vortex

1.
School of Air Traffic Management, Civil Aviation University of China, Tianjin 300300, China
2.
China Academy of Civil Aviation Science and Technology, Beijing 100028, China

More Information

Author Bio:
HAN Hong-rong (1978-), female, lecturer, + 86-22-24092446, hrhan_lotus@163.com

摘要

摘要: 分析了飞机遭遇尾涡后的响应机理, 建立了飞机受扰诱导力矩计算模型; 综合考虑飞机阻尼特性、反应时间以及操纵品质等因素, 建立了飞机滚转参数计算模型; 以抖动失速作为飞机遭遇尾涡后改出过程的坡度角极限, 建立了可接受最大坡度角计算模型。采用Delphi7.0计算了给定尾涡流场条件下的飞机受扰后滚转参数和尾涡安全间隔, 分析了飞机质量、速度、高度容差以及初始坡度角对飞行安全的影响。分析结果表明: 在速度一定时, 飞机质量越大, 可接受最大坡度角越小; 在相同质量情况下, 安全间隔随速度增加而缓慢减小, 随高度容差的减小而减小, 随初始坡度角增大而增大; 安全间隔计算结果与国际民用航空组织(ICAO)标准数据之间的最大偏差是1.56%, 因此, 计算方法正确。
- 飞行安全 /
- 尾涡 /
- 失速速度 /
- 尾涡流场 /
- 滚转坡度角
Abstract: The response mechanism of aircraft encountering wake vortex was analyzed, and the calculation model of induced moment was developed. The calculating model of aircraft's rolling parameters was constructed based on considering of the damping characteristics of aircraft, the response times, the handling qualities and so on. The calculation model of the accepted maximum bank angle was constructed based on the assumption that the buffet stall speed was posed as a critical limit in calculating the rolling progress. The rolling parameters and safe intervals of wake vortex under certain wake vortex's field condition were calculated by using DelphiT. 0. The influences of aircraft mass, speed, altitude tolerance and initial bank angle on flight safety were analyzed. Research result shows that at a certain speed, the greater aircraft mass is, the smaller the accepted maximum bank angle is. The safe interval of aircraft with certain mass decreases with the increase of speed and the decrease of altitude tolerance, while it increases with the increase of initial bank angle. Comparing the data calculated by the models with ICAO standard data, the maximal deviation is 1.56%, which verifies the correctness of the computation method.
- flight safety /
- wake vortex /
- stall speed /
- wake vortex field /
- rolling bank angle

HTML全文

图 1 γ_a和k的关系

Figure 1. Relationship between γ_a and k

下载: 全尺寸图片幻灯片

图 2 γ和t₁关系曲线

Figure 2. Relationship between γ and t₁

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图 3 飞机速度和安全间隔的关系

Figure 3. Relationship between aircraft speed and safe intervals

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图 4 初始坡度角和安全间隔的关系

Figure 4. Relationship between initial bank angle and safe intervals

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图 5 M₂和D的关系

Figure 5. Relationship between M₂ and D

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表 1 回转半径

Table 1. Gyration radii

表 2 安全间隔对比

Table 2. Comparison of safe intervals

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