Supercritical and subcritical aeroelastic behaviors of a three-dimensional wing coupled with a nonlinear energy sink

doi:10.1016/j.ijnonlinmec.2024.104692

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Supercritical and subcritical aeroelastic behaviors of a three-dimensional wing coupled with a nonlinear energy sink
	Huang CD(黄程德)2; Zheng GN(郑冠男)1,2; Nie XY(聂雪媛)1,2; Yang GW(杨国伟)1,2
刊名	INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS
	2024-05-01
卷号	161 页码:17
关键词	Flutter Nonlinear energy sink Equivalent linearization method Reduced order model
ISSN号	0020-7462
DOI	10.1016/j.ijnonlinmec.2024.104692
通讯作者	Huang, Chengde(huangchengde@imech.ac.cn) ; Zheng, Guannan(zhengguannan@imech.ac.cn)
英文摘要	This paper studies the flutter control of a three-dimensional wing using a nonlinear energy sink (NES), which has a purely cubic stiffness and a linear damper. The structural model is derived by Lagrange's equations and the aerodynamics is modeled using the auto regressive with exogenous input method. Both models are solved in a tightly coupling manner to obtain time domain results. Then, the structural describing function and the aerodynamic continuous-time state space model are used to derive the equivalent linearized aeroelastic system, so that eigenvalue analyses can be used to obtain stable and unstable limit cycle oscillations (LCOs). The LCOs obtained by time domain simulations agree well with the equivalent linearization method, while differences are observed for aperiodic motions which are only predicted in time domain for small damping coefflcients. Results show the square of aeroelastic amplitude is inversely proportional to the NES stiffness coefflcient for both periodic and aperiodic motions. The NES can induce LCOs below flutter speed for small damping coefflcients, indicating a subcritical bifurcation which can change to a supercritical one by increasing the damping coefflcient. It is discovered that the upper bound of partial suppression region is quantifled by a turning point speed. The regions of complete suppression, partial suppression and no suppression are clarifled.
分类号	二类
资助项目	National Natural Science Foundation of China[12302230] ; National Natural Science Foundation of China[12372171]
WOS关键词	COMPUTATIONAL FLUID-DYNAMICS ; LIMIT-CYCLE OSCILLATION ; SUPPRESSION ; AIRFOIL ; SIMULATION ; TRANSFERS ; AIRCRAFT ; SYSTEM
WOS研究方向	Mechanics
语种	英语
WOS记录号	WOS:001207706100001
资助机构	National Natural Science Foundation of China
其他责任者	Huang, Chengde ; Zheng, Guannan
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/95031]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
作者单位	1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, LMFS, Beijing 100190, Peoples R China;
推荐引用方式 GB/T 7714	Huang CD,Zheng GN,Nie XY,et al. Supercritical and subcritical aeroelastic behaviors of a three-dimensional wing coupled with a nonlinear energy sink[J]. INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS,2024,161:17.
APA	黄程德,郑冠男,聂雪媛,&杨国伟.(2024).Supercritical and subcritical aeroelastic behaviors of a three-dimensional wing coupled with a nonlinear energy sink.INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS,161,17.
MLA	黄程德,et al."Supercritical and subcritical aeroelastic behaviors of a three-dimensional wing coupled with a nonlinear energy sink".INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS 161(2024):17.