ARJ21飞机遭遇不同前机尾流的响应和安全性研究  

Research on the response and safety of ARJ21 aircraft encounters wake vortex of different front aircrafts

作　　者：潘卫军[1] 罗玉明 韩帅 王昊 PAN Weijun;LUO Yuming;HAN Shuai;WANG Hao(School of Air Traffic Management,CAFUC,Guanghan 618307,China)

机构地区：[1]中国民航飞行学院空中交通管理学院,四川广汉618307

出　　处：《飞行力学》2022年第1期13-18,25,共7页Flight Dynamics

基　　金：国家自然科学基金资助(U1733203);民航安全能力建设项目资助(TM2019-16-1/3);四川省科技计划项目资助(2021YFS0319);中央引导地方科技发展项目资助(2020ZYD094)。

摘　　要：为研究在实际飞行中国产ARJ21飞机遭遇前机尾流时受到的气动力、力矩及飞行安全问题,基于经典尾涡模型和空气动力学响应模型,对ARJ21飞机遭遇尾流的响应和安全性进行了分析。首先,通过尾涡耗散模型和速度模型,建立了不同前机尾涡速度场;然后,根据ARJ21飞机空气动力学响应模型进行求解,得到其升力和滚转力矩;最后,将计算结果与过载增量指标和滚转力矩系数指标进行比较,分析了国际民航组织(ICAO)规定的中型机尾流间隔下ARJ21飞机的飞行安全性。研究结果表明:当ARJ21飞机以ICAO规定的中型机尾流间隔遭遇尾流时,过载增量均小于0.15(即处于无颠簸状态),最大滚转力矩系数均小于0.048;当滚转力矩系数在0.048~0.070时,相比于ICAO规定的中型机尾流间隔,ARJ21飞机跟随中型机的尾流间隔可以缩减2.2~2.7 km,跟随重型机的尾流间隔可以缩减0.7~1.8 km,跟随超重型机的尾流间隔可以缩减2.4~3.4 km。In order to study the aerodynamic force, moment and flight safety of the ARJ21 aircraft when it encounters the front aircraft wake in actual flight, the response and safety of the ARJ21 aircraft encountering wake were analyzed based on the classic wake vortex model and the aerodynamic response model. Firstly, the wake vortex velocity fields of different front aircrafts were established through the wake vortex dissipation model and velocity model. Then, the ARJ21 aircraft aerodynamic response model was used to calculate the lift and rolling moment. Finally, the calculation results were compared with the overload increment index and rolling moment coefficient index, and the safety of ARJ21 aircraft flies under ICAO’s middle aircraft wake seperation was analyzed. Research results show that when ARJ21 aircraft encounters wake at the middle aircraft wake seperation, the overload increment is less than 0.15, that is, in a state of no turbulence, and the maximum rolling moment coefficient is less than 0.048. When the rolling moment coefficient is in the range of 0.048~0.070, compared with ICAO’s wake seperation, the wake seperation of ARJ21 aircraft follows middle aircraft can be reduced by 2.2~2.7 km, the wake seperation follows heavy aircraft can be reduced by 0.7~1.8 km, the wake seperation follows the super-heavy aircraft can be reduced by 2.4~3.4 km.

关 键 词：尾流间隔 空气动力学模型 尾流遭遇 尾涡模型 尾流安全 

分 类 号：V211.4[航空宇航科学与技术—航空宇航推进理论与工程]