多发螺旋桨飞机结冰气象探测器安装位置研究
收稿日期: 2023-07-10
修回日期: 2023-07-16
录用日期: 2023-08-10
网络出版日期: 2023-08-18
Installation location of cloud combination probe for multi⁃engine propeller aircraft
Received date: 2023-07-10
Revised date: 2023-07-16
Accepted date: 2023-08-10
Online published: 2023-08-18
针对多发螺旋桨飞机自然结冰试飞的气象探测需求，采用数值方法对结冰气象探测器的安装位置进行了研究。依据适航规章要求，提出结冰气象探测器安装位置的设计原则。采用虚拟桨盘方法计算空气场，在此基础上计算水滴场，获得空间的液态水含量分布。基于某大型水陆两栖飞机，对可行的结冰气象探测器安装位置进行了分析，获得了机身和机翼安装方案的基本规律。结果表明：水滴直径和迎角对安装位置及高度影响较大，工况选取时应对结冰气象条件和飞行包线具有一定的覆盖性；机身背部安装方案受水滴遮蔽区影响明显，所需安装高度较高，且随安装位置后移而增加；机翼下翼面安装方案应避开螺旋桨滑流影响区，结构安装支架适宜布置在前梁附近，安装高度普遍小于机身背部安装方案。以上原则及参数规律可为同类多发螺旋桨飞机提供参考。
刘冠冕 , 张帆 , 程志航 , 杨康智 , 秦何军 . 多发螺旋桨飞机结冰气象探测器安装位置研究[J]. 航空学报, 2023 , 44(S2) : 729295 -729295 . DOI: 10.7527/S1000-6893.2023.29295
To meet the needs of meteorological detection in the natural icing flight test of multi-engine propeller aircraft， the installation location of the Cloud Combination Probe （CCP） was studied by numerical method. According to the requirements of airworthiness regulations， the design principles for the installation location of CCP are proposed. Air flow field is calculated by using the virtual disk method， and the water droplet field is calculated on this basis to obtain the spatial distribution of liquid water content. Based on the large amphibious aircraft， the feasible installation position of CCP is analyzed， and the basic rules of fuselage and wing installation scheme are obtained. The results show that the median volume diameter and angle of attack have a great influence on the installation position and altitude， and the selection of operating conditions should have a certain coverage to the natural icing conditions and flight envelope. The installation scheme on the back of the fuselage is obviously affected by the droplet shadow area， and the required installation height is higher， which increases with the installation position moving backward. The installation scheme of the lower wing surface should avoid the propeller slipstream influence area. The structural mounting bracket should be arranged near the front beam， and the installation height is generally lower than that of the back of the fuselage. The above principles and parameter laws can provide reference for similar multi-engine propeller aircraft.
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