面向控制的可变形乘波体概念设计与分析  

The Control-Oriented Design and Analysis for Morphing Wave-rider

作　　者：邓俊[1] 刘燕斌[1] 张勇[1] 

机构地区：[1]南京航空航天大学航天学院,南京210016

出　　处：《航天控制》2012年第6期13-19,共7页Aerospace Control

基　　金：教育部博士点基金(20093218120035)

摘　　要：针对高超声速乘波飞行器强耦合、非线性和大包线飞行等特点,在概念设计阶段将智能变形技术引入到乘波体设计中来,根据不同飞行状态调整乘波体外形,实现飞行性能的最优化。利用高超声速空气动力学和具有热增加的准一维流估算乘波体表面气动力和发动机推力,建立可变形乘波体的参数化数学模型。仿真分析可高燃冲压发动机性能和乘波体气动特性随结构变化的关系,针对发动机性能提出了变形的依据。通过经典的内外环分布式控制器控制可变形乘波体的姿态稳定的同时具有一定的指令跟踪能力,并且验证了形变对飞行和控制性能的影响。The wave-rider is a kind of aerodynamic shape for hypersonic vehicle, as a result of high lift- drag rito and maneuvering capacity. Hypersonic vehicle has the characteristics of strong coupling, nonlinear and large envelope flight, flight performance can be optimized by introducing intelligent morphing technolo- gy which can change vehicle configuration with flight states in wave-rider conceptual design. In this paper, a nonlinear mathematical longitudinal model of a hypersonic vehicle is established with its geometry provid- ed to estimate aerodynamic force and thrust by using hypersonic aerodynamics and quasi-one-dimensional flow with heat added. By analyzing the change of sramjet engine performance and wave-rider aerodynamic characteristics to vehicle configuration, the rule of morphing based on the engine performance is given. A classical decentralized inner-outer loop control system is introduced to stable morphing wave-rider and the reference command is tracked.

关 键 词：高超声速飞行器 乘波体 变形技术 建模 

分 类 号：V271.9[航空宇航科学与技术—飞行器设计]