增加喷流控制的飞翼飞机机动仿真  

Simulation of flying wing aircraft maneuver with leading edge jet control

作　　者：孔轶男[1] 何开锋[1] 王立新[2] 钱炜祺[1] 

机构地区：[1]中国空气动力研究与发展中心空气动力学国家重点实验室,四川绵阳621000 [2]北京航空航天大学航空工程与科学学院,北京100083

出　　处：《空气动力学学报》2013年第2期186-191,共6页Acta Aerodynamica Sinica

基　　金："973"国家安全重大基础研究资助项目

摘　　要：高隐身飞行器多采用无尾飞翼布局,此种布局具有很多优点,但是在动态特性上存在一些新问题,造成了飞行器稳定和操纵的困难。本文采用喷流控制器对飞机进行辅助控制,以此来获得此类飞机较好的操稳性能。喷流控制器位于机翼前缘,可以产生较大的控制力矩,从而对飞机进行纵向和航向控制,改善飞机的操纵特性。为了对增加喷流控制的飞翼布局飞机机动特性进行仿真,并考虑到其气动特性较传统三角翼面飞机复杂(即使在常规机动状态下,飞机的气动力和力矩也表现出较强的非线性特征,且呈现多轴耦合),本文先对飞翼布局飞机进行了全量非线性六自由度建模,并通过模糊逻辑控制方法对喷流控制器进行控制。仿真结果表明,增加喷流控制器后提高了飞翼布局飞机的任务性能和安全性能,飞机能够更快速准确的跟踪控制指令。Stealth aircraft adopt flying wing design, this kind of advanced configuration has many advan- tages, but it also brings some problems in dynamic characters, that causes stealth aircraft＇s badly maneuver- bility as same as instability. To solve this problem jet controller is used. Jet control system locates at the leading edge, it could provide directional control moment and lateral control moment to improve manipulate characters. At the same time, advanced configuration aircraft is more complicated in dynamic character than traditional triangle wing aircraft. There is a great nonlinear air dynamic and coupling even in the normal flight condition. To research flying wing aircraft with jet control system, the 6-dof aircraft model was built. Fuzzy logic control method is used in the Jet control system. Simulations shows that this kind of control method enhance the mission performance and safety of aircraft, the moment requirements and control com- mands are tracked accurately and rapidly.

关 键 词：飞翼 喷流控制 模糊逻辑控制 操稳特性 数值仿真 

分 类 号：V221[航空宇航科学与技术—飞行器设计]