Longitudinal aerodynamic modeling and verification for air-launch-to-orbit system during stage separation

doi:10.1016/j.ast.2021.106915

	Longitudinal aerodynamic modeling and verification for air-launch-to-orbit system during stage separation
	Yang L(杨磊)1,2; Ye, Zhengyin 4; Li WH(李文皓)1,2 ; Sun QH(孙泉华)1,3
通讯作者	Yang, Lei(yanglei@imech.ac.cn)
发表期刊	AEROSPACE SCIENCE AND TECHNOLOGY
	2021-10-01
卷号	117 页码:21
ISSN	1270-9638
摘要	The stage separation is one of key issues for air-launch-to-orbit system. In this process, the elastic deformation of carrier causes periodic pulsation in interference aerodynamics and may lead to modal coupling and dynamics instability of spacecraft. The dynamic responses and stability of the two vehicles should be considered carefully. The CFD-based dynamic simulation method has high accuracy but requires large computation cost. In this study, a new reduced-order modeling method is developed, which is for unsteady aerodynamics of the air-launch-to-orbit system with considering the elastic deformations of carrier. Based on the physical mechanism of interference aerodynamics factors, the model input parameters are decoupled and the modeling difficulty is reduced. By coupling the unsteady aerodynamic model, structural dynamics equations and rigid body dynamic equations, the longitudinal dynamic responses of air-launch-to-orbit system during stage separation are simulated. Through comparison, those results have good agreement with traditional CFD-based method, and the simulation efficiency of new method is improved greatly. The new modeling method is applicable to the air-launch-to-orbit system and can provide guidance for similar engineering issues. (C) 2021 Elsevier Masson SAS. All rights reserved.
关键词	Store separation Aerodynamic modeling Interference aerodynamics Dynamic simulation Air-launch-to-orbit
DOI	10.1016/j.ast.2021.106915
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000687130700003
关键词[WOS]	DEFORMATION ; STORE
WOS研究方向	Engineering
WOS类目	Engineering, Aerospace
资助项目	Strategic Priority Research Program of Chinese Academy of Sciences[XDA17030100]
项目资助者	Strategic Priority Research Program of Chinese Academy of Sciences
论文分区	一类
力学所作者排名	1
RpAuthor	Yang, Lei
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/87381
专题	高温气体动力学国家重点实验室宽域飞行工程科学与应用中心
作者单位	1.Chinese Acad Sci, Inst Mech, Lab Aerosp Sci & Technol, Beijing 100190, Peoples R China; 2.Chinese Acad Sci, Inst Mech, Key Lab Mech Adv Mfg, Beijing 100190, Peoples R China; 3.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China; 4.Northwestern Polytech Univ, Sch Aeronaut, Natl Key Lab Aerodynam Design & Res, Xian 710072, Peoples R China
推荐引用方式 GB/T 7714	Yang L,Ye, Zhengyin,Li WH,et al. Longitudinal aerodynamic modeling and verification for air-launch-to-orbit system during stage separation[J]. AEROSPACE SCIENCE AND TECHNOLOGY,2021,117:21.
APA	杨磊,Ye, Zhengyin,李文皓,&孙泉华.(2021).Longitudinal aerodynamic modeling and verification for air-launch-to-orbit system during stage separation.AEROSPACE SCIENCE AND TECHNOLOGY,117,21.
MLA	杨磊,et al."Longitudinal aerodynamic modeling and verification for air-launch-to-orbit system during stage separation".AEROSPACE SCIENCE AND TECHNOLOGY 117(2021):21.

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