面向控制的高超声速飞行器动力学特性分析  

Control-oriented Dynamic Characteristics Analysis for Hypersonic Flight Vehicles

作　　者：葛东明[1] 黄显林[1] 

机构地区：[1]哈尔滨工业大学控制理论与制导技术研究中心,哈尔滨150001

出　　处：《航天控制》2010年第4期3-9,共7页Aerospace Control

基　　金：国家自然科学基金重大研究计划培育项目(90916005)

摘　　要：对于弹性机体/发动机一体化设计的高超声速飞行器,其高度复杂的动力学特性使得飞行控制研究具有挑战性。本文分析了高超声速飞行器独特的动力学特性,研究其对飞行控制系统设计的影响。基于模态分析结果,推导了关键动力学特性的解析描述,揭示出其潜在的物理机理,评估了其对控制系统稳定性和性能的影响。具体而言,研究了静不稳定性和非最小相位行为对控制带宽的约束,以及弹道/姿态大滞后特性。分析了控制/结构耦合对控制系统稳定性的影响,并给出传感器配置准则。For integrated design of flexible airframe/engine for hypersonic vehicles,the flight control research is highly challenged by the overwhelming complexity of dynamic characteristics.The especial flight dynamic characteristics of hypersonic vehicles is analyzed and effects of dynamic characteristics in regard to control system design for hypersonic vehicles is also researched and highlighted.Based on modal analysis results,analytical expressions are induced for key dynamic characteristics,the underlying physical genesis is exposed and the effects on stability and performance of the control system are evaluated.Specifically,the restriction of control bandwidth impacted on static instability and non-minimum behavior and large path-attitude lag feature are investigated.The effects on control/structure coupling for control system stability are analyzed and the criterion for sensor placement is presented.

关 键 词：高超声速 动力学特性分析 控制 传感器配置 

分 类 号：V249.1[航空宇航科学与技术—飞行器设计]