Numerical study on the nonlinear characteristics of shock induced two-dimensional panel flutter in inviscid flow
文献类型：期刊论文
| 作者 | Zhou, Hao ; Wang, Gang; Li, QuanZheng; Liu Y(刘毅)
|
| 刊名 | JOURNAL OF SOUND AND VIBRATION
 |
| 出版日期 | 2023-11-10 |
| 卷号 | 564页码:117893 |
| ISSN号 | 0022-460X |
| 关键词 | Shock wave Panel flutter Subcritical bifurcation Supercritical bifurcation Fluid -structure interaction Limit cycle oscillation |
| DOI | 10.1016/j.jsv.2023.117893 |
| 英文摘要 | 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. |
| 分类号 | 一类 |
| WOS研究方向 | Acoustics ; Engineering ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:001036376300001 |
| 资助机构 | National Natural Science Foundation of China [U2141254, 92052109] |
| 其他责任者 | Wang, G (corresponding author), Northwestern Polytech Univ, Sch Aeronaut, Xian 710072, Peoples R China. |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/92558]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.{Liu, Yi} Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China 2.{Zhou, Hao, Wang, Gang, Li, QuanZheng} Northwestern Polytech Univ, Sch Aeronaut, Xian 710072, 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. |
| 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. |
入库方式： OAI收割
来源：力学研究所
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