高超声速飞行器机体/推进一体化设计的启示  

Inspiration of hypersonic vehicle with airframe/propulsion integrated design

作　　者：罗金玲 李超 徐锦[2] 

机构地区：[1]北京空天技术研究所,北京100074 [2]北京机电工程研究所,北京100074

出　　处：《航空学报》2015年第1期39-48,共10页Acta Aeronautica et Astronautica Sinica

基　　金：国家级项目~~

摘　　要：机体/推进一体化设计是吸气式高超声速飞行器的关键技术。飞行器的前体和后体既是主要的气动型面,又是发动机进气道的外压缩型面和尾喷管的膨胀型面,一体化设计直接影响飞行器的气动与发动机性能。本文阐述了吸气式高超声速飞行器的主要特点,梳理了飞行器的推阻匹配、升阻比特性、操稳匹配等主要气动设计问题。通过对国外典型高超声速飞行器机体/推进一体化设计技术的综合分析,总结了前体/进气道、后体/尾喷管、边界层强制转捩装置等关键部件的气动设计方法,获得了有意义的启示,可为后续吸气式高超声速技术研究提供重要参考。Airframe/propulsion integrated design is the key technology for hypersonic vehicles. The fore-body and the afterbody of vehicles are not only aerodynamic surface, but also either the external-compression surface of engine inlet or the expansion surface of rear nozzle. Hence airframe/propulsion integrated design directly affects aerodynamic characteristics and performances of propulsion. In this paper, the main characteristics of hypersonic vehicle is introduced and crucial aerodynamics issues such as thrust matching with drag and lift-to-drag ratio, as well as maneuverability matching with stability etc. , are reviewed. Through a comprehensive analysis of airframe/propulsion integrated design techniques, based on foreign typical hypersonic vehicles and aerodynamic design methods of critical components, the fore-body/inlet integration, after-body/ nozzle integration and forced boundary-layer transition device etc. , are summarized and some valuable inspirations are obtained. The conclusions could provide important references for the investigation of air-breathing hypersonic technology.

关 键 词：高超声速飞行器 机体/推进一体化设计 前体/进气道 后体/尾喷管 强制转捩装置 

分 类 号：V11[航空宇航科学与技术—人机与环境工程]