| Supercritical and subcritical aeroelastic behaviors of a three-dimensional wing coupled with a nonlinear energy sink | |
Huang CD(黄程德)1; Zheng GN(郑冠男)1,2 ; Nie XY(聂雪媛)1,2; Yang GW(杨国伟)1,2
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| Corresponding Author | Huang, Chengde([email protected]) ; Zheng, Guannan([email protected]) |
| Source Publication | INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS
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| 2024-05-01 | |
| Volume | 161Pages:17 |
| ISSN | 0020-7462 |
| Abstract | 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. |
| Keyword | Flutter Nonlinear energy sink Equivalent linearization method Reduced order model |
| DOI | 10.1016/j.ijnonlinmec.2024.104692 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001207706100001 |
| WOS Keyword | COMPUTATIONAL FLUID-DYNAMICS ; LIMIT-CYCLE OSCILLATION ; SUPPRESSION ; AIRFOIL ; SIMULATION ; TRANSFERS ; AIRCRAFT ; SYSTEM |
| WOS Research Area | Mechanics |
| WOS Subject | Mechanics |
| Funding Project | National Natural Science Foundation of China[12302230] ; National Natural Science Foundation of China[12372171] |
| Funding Organization | National Natural Science Foundation of China |
| Classification | 二类 |
| Ranking | 1 |
| Contributor | Huang, Chengde ; Zheng, Guannan |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/95032 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Mech, LMFS, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
| Recommended Citation 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.Rp_Au:Huang, Chengde, Zheng, Guannan |
| 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. |
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