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.
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)
出处
《飞行力学》
CSCD
北大核心
2020年第6期19-23,34,共6页
Flight Dynamics
关键词
预警机
T型天线
气动特性
阻力
航向稳定性
AWACS
T-antenna
aerodynamic characteristics
drag
direction stability
