隐身舰载战斗机气动力设计关键技术  

Key technologies of aerodynamics design of stealth carrier-based aircraft

作　　者：富佳伟 于佳龙 刘超 王木国 王孜孜[1] FU Jiawei;YU Jialong;LIU Chao;WANG Muguo;WANG Zizi(AVIC Shenyang Aircraft Design Institute,Shenyang 110035,China)

机构地区：[1]航空工业沈阳飞机设计研究所,沈阳110035

出　　处：《航空学报》2021年第8期163-169,共7页Acta Aeronautica et Astronautica Sinica

摘　　要：围绕隐身舰载战斗机气动力设计中的关键技术问题,深入梳理了有益的工程设计经验,从多目标约束下的起降增升设计、跨超声速精细化减阻设计、全机均衡减载设计等3个方面,阐述了气动力设计在性能、操稳、重量、隐身等多专业强约束下的窄域设计方法。相关分析表明:采用机翼后缘简单襟翼的设计方式、结合机翼三维型面弯扭设计与舵面使用策略优化,能够满足强隐身约束下舰载战斗机的起降升力需求;合理配置座舱位置以及后机身上表面的激波压缩/膨胀波系、优化进气道溢流吸力矢量方向等,能够在不降低机身容积的前提下,有效降低机身阻力;利用机身下表面与拦阻钩舱门区的修型进行机身反弯设计,能够实现严重载荷状态下的平尾减载。Several key technologies and beneficial engineering design experiences in the aerodynamic design of stealth carrier-based aircraft are introduced in this paper.Based on three aspects including the design of enhancing lift at the taking-off and landing status,refined drag reduction for supersonic flow and the balanced design of load reductions,the concepts of extreme narrow-range aerodynamic design under multi-specialty constraints such as performance,stability,weight and stealth are stated.Relative research shows that the requirements of the lift at the taking-off and landing status can be satisfied by the simple flap design with the optimization of three-dimensional bending of wings.The drug of the aircraft can be reduced by optimizing the cockpit and the compressible/expansion waves at the fuselage and the directions of overflow suction.Moreover,the load reduction of the horizontal tail can be gained by the reverse bending design of the lower fuselage and the barrage hatch.

关 键 词：隐身舰载战斗机 气动力设计 窄域设计方法 增升减阻 均衡减载 

分 类 号：V241.0[航空宇航科学与技术—飞行器设计]