IMECH-IR  > 流固耦合系统力学重点实验室
Investigation on transonic flutter active auppression with CFD-Based ROMs
Nie XY(聂雪媛); Yang GW(杨国伟); Zhang MF(张明峰)
Source PublicationSCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
2015
Volume58Issue:1Pages:014701
ISSN1674-7348
Abstract

The calculation of accurate unsteady aerodynamic forces is critical in the analysis of aeroelastic problems, however the efficiency is low because of high computational costs of the computational fluid dynamics (CFD) portion. Additionally, direct integrated CFD and computational structural dynamics (CSD) technique is unsuitable for the analysis of ASE and the flutter active suppression in state-space form. A reduced-order model (ROM) based on Volterra series was developed using CFD calculation and used to predict the flutter coupled with the structure. The closed-loop control systems designed by the sliding mode control (SMC) and linear quadratic Gaussian (LQG) control were constructed with ROM/CSD to suppress the AGARD 445.6 wing flutter. The detailed implementation of the two control approaches is presented, and the flutter suppression effectiveness is discussed and compared. The results indicate that SMC method can make the controlled object response decay to the stable equilibrium more rapidly and has better control effects than the LQG control.

Keyword:Reduced Order Model Aeroelasticity Linear Quadratic Gaussian Control Sliding Mode Control Active Flutter Suppression Keywords Plus:Navier-stokes Equations Suppression Identification Computations System
Indexed BySCI ; EI ; CSCD
Language英语
WOS IDWOS:000349872500011
DepartmentLMFS流固耦合与数值计算(LHO)
Classification二类
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/60682
Collection流固耦合系统力学重点实验室
Corresponding AuthorYang GW(杨国伟)
Recommended Citation
GB/T 7714
Nie XY,Yang GW,Zhang MF. Investigation on transonic flutter active auppression with CFD-Based ROMs[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2015,58(1):014701.
APA Nie XY,Yang GW,&Zhang MF.(2015).Investigation on transonic flutter active auppression with CFD-Based ROMs.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,58(1),014701.
MLA Nie XY,et al."Investigation on transonic flutter active auppression with CFD-Based ROMs".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 58.1(2015):014701.
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