翼身融合民机总体气动技术研究进展与展望  

Research progress and prospect for conceptual and aerodynamic technology of blended-wing-body civil aircraft

作　　者：王刚[1] 张彬乾[1] 张明辉[1] 桑为民[1] 袁昌盛[1] 李栋[1] WANG Gang;ZHANG Binqian;ZHANG Minghui;SANG Weimin;YUAN Changsheng;LI Dong(School of Aeronautics,Northwestern Polytechnical University,Xi'an 710072,China)

机构地区：[1]西北工业大学航空学院

出　　处：《航空学报》2019年第9期1-29,共29页Acta Aeronautica et Astronautica Sinica

基　　金：中央高校基本科研业务费专项资金(3102019JC009,G2016KY0002)~~

摘　　要：翼身融合(BWB)布局作为下一代亚声速民机主流方案已得到共识,研究步伐正在加快,进入工程应用指日可待。在回顾国内外BWB民机发展历程的基础上,简要阐述了飞翼布局(FW)和BWB布局的差异,明确了BWB概念特征及应用范围。聚焦BWB飞机总体气动设计中的技术挑战和对策,重点论述分析了BWB布局技术瓶颈及设计思想演化,新型结构与重量估算、适航符合性等总体设计问题,气动布局设计原则、高-低速性能协调等气动布局设计问题,飞-发干扰与一体化设计、新型发动机技术应用等飞机-发动机综合集成设计问题,降噪技术及其衍生的设计冲突、考虑噪声指标的总体设计策略等问题。并从技术进展和工程可实现性角度,展望了BWB民机的发展趋势。It is well known that the Blended-Wing-Body (BWB) layout is a mainstream scheme for the next-generation subsonic civil aircraft. The research of BWB is accelerating, and is expected to be applied to engineering. On the basis of reviewing the development history of BWB civil aircraft, the differences between Flying Wing (FW) and BWB layouts are explained from different aspects, clarifying the conceptual features and applicational scopes of BWB. This paper focuses on the technical challenges and countermeasures in BWB conceptual and aerodynamic designs, analyzing the technical bottleneck and evolution of design ideas, the key technologies of conceptual design such as the new structure, weight estimation and airworthiness compliance, the key technologies of aerodynamic configuration design such as the aerodynamic configuration design principles, and the trade-off between high and low speed performance. Moreover, the propulsion airframe integration problems of BWB layout including the aircraft-engine interference, the integrated design, and the new engine technology application are discussed. Then the noise reduction technology and the derived design contradiction of BWB, and conceptual design strategies considering noise requirements are discussed. Finally, the development trend of BWB civil aircraft is prospected from the aspects of technological progress and engineering achievability.

关 键 词：翼身融合 亚声速民机 总体设计 气动布局设计 飞机-发动机集成设计 降噪技术 

分 类 号：V232[航空宇航科学与技术—航空宇航推进理论与工程]