Lateral collision dynamics of CSPRs paired approach under influence of wake vortex field

中国安全科学学报 Pub Date : 2021-01-27 DOI:10.16265/J.CNKI.ISSN1003-3033.2020.04.004

Lui Fei, Teng Jingjie, Wu Jun, Zhang Zhaoning, Zhang Zonglu

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引用次数: 1

Abstract

In order to study lateral collision risk of CSPRS paired approachꎬ firstlyꎬ considering traditional approach motion processꎬ an interval model of paired approaching aircrafts was established to determine theoretical interval between them at any time. Secondlyꎬ characteristics of aircrafts' wake vortex field were analyzed to establish a strength calculation model and dissipation model for leading aircraft 's wake flow. Rear aircraft's response mechanism after encountering wake flow was also studiedꎬ and a torque balance model of it in wake vortex field of leading aircraft was developed to determine safety spacing between them. Thenꎬ lateral positioning error of aircrafts was analyzed to obtain probability distribution of 中国安全科学学报 China Safety Science Journal 第30卷 2020年 actual interval between paired aircraftsꎬ and a risk calculation model was establishedꎬ which was applied to analyze changes of lateral collision risk between leading and rear aircrafts during paired approach. The results show that lateral collision risk increases with the increase of initial interval and positive side windꎬ and then decreases with the increase of aileron 's deflection angle. It rises to the maximum value when paired aircrafts reach the head of runway.

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尾流场影响下CSPRs配对方法的横向碰撞动力学

为了研究CSPRS配对进近的横向碰撞风险ꎬ首先ꎬ考虑传统的进近运动过程ꎬ建立了配对进近飞机的区间模型，确定了它们在任何时刻的理论区间。其次，分析了ꎬ飞机尾流场特性，建立了先导飞机尾流强度计算模型和耗散模型。研究了后机遇到尾流后的响应机理ꎬ，建立了后机在前机尾流场中的转矩平衡模型，确定了后机与前机之间的安全间距。然后，对飞机横向定位误差ꎬ进行分析，得到成对飞机实际间隔的概率分布ꎬ，并建立了风险计算模型ꎬ，应用该模型分析了成对进近过程中前后飞机横向碰撞风险的变化。结果表明:横向碰撞风险随初始间隔和正侧风ꎬ的增大而增大，随副翼偏转角的增大而减小;当成对飞机到达跑道头部时，它达到最大值。

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来源期刊

中国安全科学学报

CiteScore

1.30

自引率

0.00%

发文量

8733

期刊介绍： China Safety Science Journal is administered by China Association for Science and Technology and sponsored by China Occupational Safety and Health Association (formerly China Society of Science and Technology for Labor Protection). It was first published on January 20, 1991 and was approved for public distribution at home and abroad. China Safety Science Journal (CN 11-2865/X ISSN 1003-3033 CODEN ZAKXAM) is a monthly magazine, 12 issues a year, large 16 folo, the domestic price of each book is 40.00 yuan, the annual price is 480.00 yuan. Mailing code 82-454. Honors: Scopus database includes journals in the field of safety science of high-quality scientific journals classification catalog T1 level National Chinese core journals China Science and technology core journals CSCD journals The United States "Chemical Abstracts" search included the United States "Cambridge Scientific Abstracts: Materials Information" search included