Thermostructural Analysis of Unconventional Wing Structures of a Hyper-X Hypersonic Flight Research Vehicle for the Mach 7 Mission
Ko, William L. and Gong, Leslie (2001) Thermostructural Analysis of Unconventional Wing Structures of a Hyper-X Hypersonic Flight Research Vehicle for the Mach 7 Mission. Technical Report NASA/TP-2001-210398, Research Engineering, NASA Dryden Flight Research Center.
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Abstract
Heat transfer, thermal stresses, and thermal buckling analyses were performed on the unconventional wing structures of a Hyper-X hypersonic flight research vehicle (designated as X-43) subjected to nominal Mach 7 aerodynamic heating. A wing midspan cross section was selected for the heat transfer and thermal stress analyses. Thermal buckling analysis was performed on three regions of the wing skin (lower or upper); 1) a fore wing panel, 2) an aft wing panel, and 3) a unit panel at the middle of the aft wing panel. A fourth thermal buckling analysis was performed on a midspan wing segment. The unit panel region is identified as the potential thermal buckling initiation zone. Therefore, thermal buckling analysis of the Hyper-X wing panels could be reduced to the thermal buckling analysis of that unit panel. "Buckling temperature magnification factors" were established. Structural temperature-time histories are presented. The results show that the concerns of shear failure at wing and spar welded sites, and of thermal buckling of Hyper-X wing panels, may not arise under Mach 7 conditions.
| EPrint Type: | NASA Technical Publication |
|---|---|
| Keywords: | Buckling temperature magnification factors, Hyper-X wing, Irregular panels, Non-uniform temperature loading, Thermal buckling |
| Subjects: | Aircraft/Project: X-43A Hyper-X (31 - 39) Engineering: (39) Structural Mechanics |
| ID Code: | 56 |
| Deposited On: | 01 June 2004 |
| Additional Information: | 44 pages. |
