| Aeroelastic Simulation Using CFD/CSD Coupling Based on Precise Integration Method | |
Huang CD(黄程德)1,2; Huang J(黄杰)1,2; Song X(宋鑫)1,2; Zheng GN(郑冠男)1,2 ; Nie XY(聂雪媛)1,2
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| Corresponding Author | Zheng, Guannan([email protected]) |
| Source Publication | INTERNATIONAL JOURNAL OF AERONAUTICAL AND SPACE SCIENCES
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| 2020-02-05 | |
| Pages | 18 |
| ISSN | 2093-274X |
| Abstract | Aeroelasticity studies the interaction between the aerodynamic loads and the flexible structures, and has gained much attention in the design of modern aircraft. Most of the existing computational fluid dynamics/computational structural dynamics (CFD/CSD) coupling approaches are based on Runge-Kutta method, central difference method, linear multi-step method and so on, which are conditionally stable and are unsuitable for the stiff problem that requires a very small time step to solve. In this paper, the precise integration method (PIM) formula is derived for the structural modal equations and then the PIM-based CFD/CSD coupling method is presented. The three-dimensional AGARD wing 445.6 and a sweptback wing are considered here for aeroelastic studies. The flutter results demonstrate that the presented method is comparable in accuracy to the traditional strong coupling method and has better numerical stability property than some exiting improved methods. For the static aeroelastic analyses, applying a large damping ratio to the structural equations helps to obtain the equilibrium quickly but may lead to the stiff problem, which was seldom discussed before. The results show that the presented PIM-based coupling method can overcome the stiff problem arising in static aeroelastic systems and is more efficient than the traditional coupling approach based on Runge-Kutta method, especially when a large damping ratio is applied. |
| Keyword | Flutter Static aeroelasticity CFD CSD coupling Precise integration method |
| DOI | 10.1007/s42405-020-00248-9 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000515881300001 |
| WOS Keyword | WING FLUTTER ; FREEPLAY ; VORTEX ; ALGORITHMS ; PREDICTION ; AIRCRAFT ; SYSTEM |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Aerospace |
| Funding Project | National Natural Science Foundation of China[11702298] ; National Natural Science Foundation of China[11672303] |
| Funding Organization | National Natural Science Foundation of China |
| Classification | Q4 |
| Ranking | 1 |
| Contributor | Zheng, Guannan |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/81602 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Mech, 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,Huang J,Song X,et al. Aeroelastic Simulation Using CFD/CSD Coupling Based on Precise Integration Method[J]. INTERNATIONAL JOURNAL OF AERONAUTICAL AND SPACE SCIENCES,2020:18.Rp_Au:Zheng, Guannan |
| APA | 黄程德,黄杰,宋鑫,郑冠男,&聂雪媛.(2020).Aeroelastic Simulation Using CFD/CSD Coupling Based on Precise Integration Method.INTERNATIONAL JOURNAL OF AERONAUTICAL AND SPACE SCIENCES,18. |
| MLA | 黄程德,et al."Aeroelastic Simulation Using CFD/CSD Coupling Based on Precise Integration Method".INTERNATIONAL JOURNAL OF AERONAUTICAL AND SPACE SCIENCES (2020):18. |
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| Jp2020015A.pdf（5463KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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