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Multidisciplinary Design Optimization of a Transonic Commercial Transport with a Strut-Braced Wing
Technical Paper
1999-01-5621
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper details the multidisciplinary design optimization (MDO) of a strut-braced wing aircraft and its benefits relative to the cantilever wing configuration. The multidisciplinary design team is subdivided into aerodynamics, structures, aeroelasticity and synthesis of the various disciplines. The aerodynamic analysis consists of simple models for induced drag, wave drag, parasite drag and interference drag. The interference drag model is based on detailed computational fluid dynamics (CFD) analyses of various wing-strut intersection flows. The wing structural weight is partially calculated using a newly developed wing bending material weight routine that accounts for the special nature of strut-braced wings. The remaining components of the aircraft weight are calculated using a combination of NASA’s Flight Optimization System (FLOPS) and Lockheed Martin Aeronautical System formulas. The strut-braced wing and cantilever wing configurations are optimized using Design Optimization Tools (DOT). Offline NASTRAN aerolasticity analysis preliminary results indicate that the flutter speed is higher than the design requirement.
Authors
- F. H. Gern - Virginia Polytechnic Institute and State Univ.
- J. F. Gundlach - Virginia Polytechnic Institute and State Univ.
- A. Ko - Virginia Polytechnic Institute and State Univ.
- A. Naghshineh-Pour - Virginia Polytechnic Institute and State Univ.
- E. Sulaeman - Virginia Polytechnic Institute and State Univ.
- P. -A. Tetrault - Virginia Polytechnic Institute and State Univ.
- B. Grossman - Virginia Polytechnic Institute and State Univ.
- R. K. Kapania - Virginia Polytechnic Institute and State Univ.
- W. H. Mason - Virginia Polytechnic Institute and State Univ.
- J. A. Schetz - Virginia Polytechnic Institute and State Univ.
- R. T. Haftka
Citation
Gern, F., Gundlach, J., Ko, A., Naghshineh-Pour, A. et al., "Multidisciplinary Design Optimization of a Transonic Commercial Transport with a Strut-Braced Wing," SAE Technical Paper 1999-01-5621, 1999, https://doi.org/10.4271/1999-01-5621.Also In
References
- Pfenninger, W. Design Considerations of Large Subsonic Long Range Transport Airplanes with Low Drag Boundary Layer Suction, Northrop Aircraft, Inc. Report NAI-54-800 (BLC-67) November 1954
- Gunston, B. Giants of the Sky: The Biggest Aeroplanes of All Time Patrick Stephens Limited Wellingborough, UK 240 250
- Kulfan, R.M. Vachal, J.D. Wing Planform Geometry Effects on Large Subsonic Military Transport Airplanes Boeing Commercial Airplane Company AFFDL-TR-78-16 February 1978
- Jobe, C.E. Kulfan, R.M. Vachal, J.D. Wing Planforms for Large Military Transports, AIAA-78- 1470 1978
- Turriziani, R.V. Lovell, W.A. Martin, G.L. Price, J.E. Swanson, E.E. Washburn, G.F. Preliminary Design Characteristics of a Subsonic Business Jet Consept Employing an Aspect Ratio 25 Strut-Braced Wing, NASA CR-159361 October 1980
- Smith, P.M. DeYOung, J. Lovell, W.A. Price, J.E. Washburn, G.F. A Study of High-Altitude Manned Research Aircraft Employing Strut-Braced Wings of High-Aspect Ratio, NASA CR-159262 February 1981
- Grasmeyer, J.M. Naghshineh Pour, A. Tetrault, P.-A. Grossman, B. Haftka, R.T. Kapania, R.K. Mason, W.H. Schetz, J.A. Multidisciplinary Design Optimization of a Strut-Braced Wing Aircraft with Tip- Mounted Engines MAD 98-01-01 1998
- Grasmeyer, J.M. Multidisciplinary Design Optimization of a Strut-Braced Wing Aircraft MS Thesis Virginia Polytechnic Institute & State University April 1998
- Martin, K.C. Kopec, B.A. A Structural and Aerodynamic Investigation of a Strut-Braced Wing Transport Aircraft Concept NAS1-96014 November 1998
- Vanderplaats Research & Development, Inc. DOT User’s Manual, Version 4.20 Colorado Springs, CO 1995
- Gundlach, J.F. Multidisciplinary Design Optimization and Industry Review of a 2010 Strut-Braced Wing Transonic Transport MAD 99-06-03 1999
- Hoerner, S.F. Fluid Dynamic Drag: Practical Information on Aerodynamic Drag and Hydrodynamic Resistance Mrs. Hoerner 1965 Current address: P.O. Box 65283, Vancouver, WA 98665
- Pirzadeh, S. Structured Background Grids for Generation of Unstructured Grids by Advancing-Front Method AIAA Journal 31 February 1993 257 265
- Frink, N.T. Pirzadeh, S. Parikh, P. An Unstructured- Grid Software System for Solving Complex Aerodynamic Problems NASA CP-3291 May 1995
- Frink, N.T. Parikh, P. Pirzadeh, S. A Fast Upwind Solver for the Euler Equations on Three- Dimensional Unstructured Meshes” AIAA-91-0102 1991
- McCullers, L.A. FLOPS User’s Guide, Release 5.81 Text file included with the FLOPS code.
- Naghshineh-Pour, A.H. Kapania, R. Haftka, R. Preliminary Structural Analysis of a Strut-Braced Wing VPI-AOE-256 June 1998
- Torenbeek, E. Development and Application of a Comprehensive, Design Sensitive Weight Prediction Method for Wing Structures of Transport Category Aircraft, Delft University of Technology Report LR- 693 Sept. 1992
- Roskam, J. Methods for Estimating Stability and Control Derivatives of Conventional Subsonic Airplanes Roskam Aviation and Engineering Corp. Lawrence, KS 1971
- Grasmeyer, J.M. Stability and Control Derivative Estimation and Engine-Out Analysis VPI-AOE-254 January 1998
- Mattingly, J.D. Heiser, W.H. Daley, D.H. Aircraft Engine Design, AIAA Washington, D.C. 1987
- Roskam, J. Lan, C.-T.E. Airplane Aerodynamics and Performance DARCorporation Lawrence, KS 1997