全动平尾颤振关键设计因素研究  

Study on key design factors of all-movable horizontal tail flutter

作　　者：张桂江 刘钟坤[1] 胡家亮[1] 胡鑫[1] 高一地 ZHANG Guijiang;LIU Zhongkun;HU Jialiang;HU Xin;GAO Yidi(Shenyang Aircraft Design&Research Institute,110035 Shenyang,China)

机构地区：[1]沈阳飞机设计研究所,沈阳110035

出　　处：《应用力学学报》2023年第1期73-80,共8页Chinese Journal of Applied Mechanics

基　　金：国家自然科学基金资助项目(No.91330206)。

摘　　要：全动平尾颤振设计是战斗机设计中的重要环节,全动平尾的颤振包线直接决定飞机的飞行包线。建立了适用于结构动力学及颤振分析的全动平尾仿真模型,针对全动平尾气动布局与结构布局,通过仿真分析,提炼了全动平尾颤振关键设计因素,包括前缘后掠角、气动力面积分布、尾梁支承刚度、大轴刚度、大轴位置、作动系统刚度、翼面质量分布等,利用数值仿真计算,获得不同设计因素与平尾颤振速度之间的关系,指出各因素对于提高平尾颤振速度的设计趋势以及对结构重量的利弊。通过缩比模型的风洞试验验证了各参数对平尾颤振影响的正确性,综合数值计算与缩比模型的风洞试验总结出的全动平尾颤振关键设计因素可为飞机平尾总体布局设计提供参考。All-movable horizontal tail flutter design is an important part in the overall design of fighters.The flutter envelope of all-movable horizontal tail directly determines the flight envelope of the aircraft.A finite element model of all-movable horizontal tail for structural dynamics and flutter is established.According to aerodynamic layouts and structural layouts,the key flutter design factors have been extracted,including the leading edge sweep angle,aerodynamic area distribution,empennage support stiffness,spindle stiffness,location of spindle,control stiffness,and mass distribution.By means of numerical simulation,the relationship between different design factors and flutter speed is obtained.The design trend of improving flutter velocity of all-movable horizontal tail and the advantages and disadvantages of these factors on structure weight are pointed out.The wind tunnel tests on a scaled model verify the correctness of the effects of various parameters on all-movable horizontal tail flutter.The numerical calculations of flutter and wind tunnel tests are analyzed.The results show that the flutter design parameters are effective and can be used as the key factors in flutter design of all-movable horizontal tail.

关 键 词：全动平尾 颤振设计 缩比模型 数值计算 风洞试验 

分 类 号：V211.7[航空宇航科学与技术—航空宇航推进理论与工程]