Toward Real-Time Computational-Fluid-Dynamics-Based Aeroelastic Computations Using a Database of Reduced-Order Information

被引:87
作者
Amsallem, David [1 ]
Cortial, Julien
Farhat, Charbel [1 ]
机构
[1] Stanford Univ, Dept Aeronaut & Astronaut, Dept Mech Engn, Inst Computat & Math Engn, Stanford, CA 94305 USA
基金
美国国家科学基金会;
关键词
PROPER ORTHOGONAL DECOMPOSITION; F-16; CONFIGURATION; MODEL-REDUCTION;
D O I
10.2514/1.J050233
中图分类号
V [航空、航天];
学科分类号
08 ; 0825 ;
摘要
This paper describes a computational-fluid-dynamics-based computational methodology for fast on-demand aeroelastic predictions of the behavior of a full aircraft configuration at variable flight conditions and demonstrates its feasibility. The methodology relies on the offline precomputation of a database of reduced-order bases and models associated with a discrete set of flight parameters, and its training for an interpolation method suitable for reduced-order information. The potential of this near-real-time computational methodology for assisting flutter flight testing is highlighted with the aeroelastic identification of an F-16 configuration in the subsonic, transonic, and supersonic regimes.
引用
收藏
页码:2029 / 2037
页数:9
相关论文
共 24 条
[11]  
Hastie T., 2009, ELEMENTS STAT LEARNI, DOI 10.1007/978-0-387-84858-7
[12]  
Hu P., 2008, AIAA ATM FLIGHT MECH
[13]   Aeroelastic model reduction for affordable computational fluid dynamics-based flutter analysis [J].
Kim, T ;
Hong, M ;
Bhatia, KG ;
SenGupta, G .
AIAA JOURNAL, 2005, 43 (12) :2487-2495
[14]   A linearized method for the frequency analysis of three-dimensional fluid/structure interaction problems in all flow regimes [J].
Lesoinne, M ;
Sarkis, M ;
Hetmaniuk, U ;
Farhat, C .
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, 2001, 190 (24-25) :3121-3146
[15]   Higher-order subiteration-free staggered algorithm for nonlinear transient aeroelastic problems [J].
Lesoinne, M ;
Farhat, C .
AIAA JOURNAL, 1998, 36 (09) :1754-1757
[16]   Reduced-order fluid/structure modeling of a complete aircraft configuration [J].
Lieu, T. ;
Farhat, C. ;
Lesoinne, A. .
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, 2006, 195 (41-43) :5730-5742
[17]  
Lieu T., 2005, 20052295 AIAA
[18]  
Lieu T., 2005, 20057666 AIAA, P2005
[19]  
Lieu T., 2004, 20040888 AIAA, P2004
[20]  
Lieu T., 2004, THESIS U COLORADO BO