T型天线预警机气动特性研究  

Study on aerodynamic characteristics of AWACS with T-antenna

作　　者：梁欣杰 董强 耿延升 王永超 LIANG Xinjie;DONG Qiang;GENG Yansheng;WANG Yongchao(General Configuration and Aerodynamics Design Institute,AVIC the First Aircraft Institute,Xi’an 710089,China)

机构地区：[1]航空工业第一飞机设计研究院总体气动设计研究所,陕西西安710089

出　　处：《飞行力学》2020年第6期19-23,34,共6页Flight Dynamics

摘　　要：T型天线预警机是近年出现的一种新型预警机。为了对采用T型天线的楔尾预警机进行研究,设计了楔尾预警机的三维数模,基于该模型对T型天线预警机开展数值模拟计算,分析了T型天线和腹鳍对载机气动特性的影响,研究了T型天线预警机的流动机理,获得了T型天线预警机的气动特性。结果表明:T型天线预警机的T型天线和腹鳍使飞行阻力增加,当有侧滑时T型天线还使飞机的侧向力增加;T型天线会大幅降低飞机的航向稳定性,而腹鳍能使飞机航向稳定性得到一定的恢复,从而使T型天线预警机拥有足够的航向稳定性。Airborne Warning and Control System(AWACS) with T-antenna was a new type of AWACS in recent years. An AWACS with T-antenna named Wedgetail was researched, and a 3 D mathematical model of the Wedgetail was designed. The AWACS with T-antenna was studied by numerical simulation based on the 3 D mathematical model. The influence of T-antenna and ventral fins on the aerodynamic characteristics of the carrier was analyzed, the flow mechanism of the AWACS with T-antenna was studied, and the aerodynamic characteristics of the AWACS with T-antenna was obtained. The results indicate that the T-antenna and ventral fins increase the drag of flight, and the T-antenna increases the lateral force in the case of a side slip. The T-antenna declines the direction stability of the AWACS, but the ventral fins can increase the direction stability of the AWACS, so the AWACS with T-antenna has sufficient direction stability.

关 键 词：预警机 T型天线 气动特性 阻力 航向稳定性 

分 类 号：V271.47[航空宇航科学与技术—飞行器设计] V211.4