A CFD/CSD interaction methodology for aircraft wings
- Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (United States)
- Boeing Co., St. Louis, MO (United States)
- NASA, Moffett Field, CA (United States). Ames Research Center
With advanced subsonic transports and military aircraft operating in the transonic regime, it is becoming important to determine the effects of the coupling between aerodynamic loads and elastic forces. Since aeroelastic effects can significantly impact the design of these aircraft, there is a strong need in the aerospace industry to predict these interactions computationally. Such an analysis in the transonic regime requires high fidelity computational fluid dynamics (CFD) analysis tools, due to the nonlinear behavior of the aerodynamics in the transonic regime and also high fidelity computational structural dynamics (CSD) analysis tools. Also, there is a need to be able to use a wide variety of CFD and CSD methods to predict aeroelastic effects. Since source codes are not always available, it is necessary to couple the CFD and CSD codes without alteration of the source codes. In this study, an aeroelastic coupling procedure is developed to determine the static aeroelastic response of aircraft wings using any CFD and CSD code with little code integration. The aeroelastic coupling procedure is demonstrated on an F/A-18 Stabilator using NASTD (an in-house McDonnell Douglas CFD code) and NASTRAN. In addition, the Aeroelastic Research Wing (ARW-2) is used for demonstration of the aeroelastic coupling procedure by using ENSAERO (NASA Ames Research Center CFD code) and a finite element wing-box code. The results obtained from the present study are compared with those available from an experimental study conducted at NASA Langley Research Center and a study conducted at NASA Ames Research Center using ENSAERO and modal superposition. The results compare well with experimental data.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 658442
- Report Number(s):
- SAND-98-0136C; CONF-980909-; ON: DE98005767; BR: DP0101031; CNN: Contract NCC2-5097; Contract PO Z60807; TRN: AHC2DT06%%326
- Resource Relation:
- Conference: 7. symposium on multidisciplinary analysis and optimization, St. Louis, MO (United States), 2-4 Sep 1998; Other Information: PBD: Jan 1998
- Country of Publication:
- United States
- Language:
- English
Similar Records
Computational Analysis of the Transonic Dynamics Tunnel Using FUN3D
Oblique wing transonic transport configuration development. Final report