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Summary report of the orbital x-34 wing static aeroelastic study
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Prabhn, Ramadas K. |
| Copyright Year | 2001 |
| Description | This report documents the results of a computational study conducted on the Orbital Sciences X-34 vehicle to compute its inviscid aerodynamic characteristics taking into account the wing structural flexibility. This was a joint exercise between LaRC and SDRC of California. SDRC modeled the structural details of the wing, and provided the structural deformation for a given pressure distribution on its surfaces. This study was done for a Mach number of 1.35 and an angle of attack of 9 deg.; the freestream dynamic pressure was assumed to be 607 lb/sq ft. Only the wing and the body were simulated in the CFD computations. Two wing configurations were examined. The first had the elevons in the undeflected position and the second had the elevons deflected 20 deg. up. The results indicated that with elevon undeflected, the wing twists by about 1.5 deg. resulting in a reduction in the angle of attack at the wing tip to by 1.5 deg. The maximum vertical deflection of the wing is about 3.71 inches at the wing tip. For the wing with the undeflected elevons, the effect of this wing deformation is to reduce the normal force coefficient (C(sub N)) by 0.012 and introduce a noise up pitching moment coefficient (C(sub m)) of 0.042. |
| File Size | 669296 |
| Page Count | 20 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20010041077 |
| Archival Resource Key | ark:/13960/t9770f59t |
| Language | English |
| Publisher Date | 2001-04-01 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Pitching Moments Computational Fluid Dynamics X-34 Reusable Launch Vehicle Pressure Distribution Inviscid Flow Angle of Attack Free Flow Aeroelasticity Aerodynamic Characteristics Flexibility Mach Number Dynamic Pressure Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
