Numerical study on the nonlinear characteristics of shock induced two-dimensional panel flutter in inviscid flow

doi:10.1016/j.jsv.2023.117893

IMECH-IR > 非线性力学国家重点实验室

	Numerical study on the nonlinear characteristics of shock induced two-dimensional panel flutter in inviscid flow
	Zhou, Hao; Wang, Gang; Li, QuanZheng ; Liu Y(刘毅)
发表期刊	JOURNAL OF SOUND AND VIBRATION
	2023-11-10
卷号	564 页码:117893
ISSN	0022-460X
摘要	For an aeroelastic system of a two-dimensional elastic panel subjected to an impinging inviscid oblique shockwave, the nonlinear flutter characteristics are affected by many factors such as shock impingement location, cavity pressure and initial perturbation. The effects of the above factors on the variation of system bifurcation type and dynamic behaviors are investigated numerically. A low-fidelity computational method coupled with local piston theory and van Karman plate model, and a high-fidelity computational method coupled with Euler equations and finite element model are used for fluid-structure interaction simulations. Two sets of new findings are unveiled. First, either the variation of shock impingement location or cavity pressure can induce the aeroelastic system to transition between a subcritical bifurcation and a supercritical bifurcation. For some cases, the system bifurcation characteristics exhibit strong sensitivity to these two factors. Second, it is found that in addition to the limit cycle oscillation in the form of a combination of the second and third structural modes, multiple stable limit cycle oscillations due to the coupling of higher-order modes can be triggered by suitable initial perturbations. These limit cycle oscillations have high frequencies and amplitudes, which suggest a higher risk of structural fatigue failure.
关键词	Shock wave Panel flutter Subcritical bifurcation Supercritical bifurcation Fluid -structure interaction Limit cycle oscillation
DOI	10.1016/j.jsv.2023.117893
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001036376300001
WOS研究方向	Acoustics ; Engineering ; Mechanics
WOS类目	Acoustics ; Engineering, Mechanical ; Mechanics
项目资助者	National Natural Science Foundation of China [U2141254, 92052109]
论文分区	一类
力学所作者排名	3+
RpAuthor	Wang, G (corresponding author), Northwestern Polytech Univ, Sch Aeronaut, Xian 710072, Peoples R China.
引用统计	被引频次：5[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/311007/92558
专题	非线性力学国家重点实验室
作者单位	1.{Zhou, Hao, Wang, Gang, Li, QuanZheng} Northwestern Polytech Univ, Sch Aeronaut, Xian 710072, Peoples R China 2.{Liu, Yi} Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Hao,Wang, Gang,Li, QuanZheng,et al. Numerical study on the nonlinear characteristics of shock induced two-dimensional panel flutter in inviscid flow[J]. JOURNAL OF SOUND AND VIBRATION,2023,564:117893.Rp_Au:Wang, G (corresponding author), Northwestern Polytech Univ, Sch Aeronaut, Xian 710072, Peoples R China.
APA	Zhou, Hao,Wang, Gang,Li, QuanZheng,&刘毅.(2023).Numerical study on the nonlinear characteristics of shock induced two-dimensional panel flutter in inviscid flow.JOURNAL OF SOUND AND VIBRATION,564,117893.
MLA	Zhou, Hao,et al."Numerical study on the nonlinear characteristics of shock induced two-dimensional panel flutter in inviscid flow".JOURNAL OF SOUND AND VIBRATION 564(2023):117893.

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