Controlling Stability and Load Limits of Aerodynamically Induced Forces on Very Large Assymetric Fairing Designs

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$99,528.00
Award Year:
2004
Program:
SBIR
Phase:
Phase I
Contract:
FA9453-04-M-0133
Agency Tracking Number:
F041-038-2730
Solicitation Year:
2004
Solicitation Topic Code:
AF04-038
Solicitation Number:
2004.1
Small Business Information
ATA ENGINEERING, INC.
11995 El Camino Real, Suite 200, San Diego, CA, 92130
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
133709001
Principal Investigator:
Paul Blelloch
Vice President, Aerospace Analysis
(858) 792-3965
paul.blelloch@ata-e.com
Business Contact:
David Hunt
Vice President Business Development
(858) 792-3995
dave.hunt@ata-e.com
Research Institution:
n/a
Abstract
The proposed program addresses the development of a very large asymmetric fairing that will allow considerably larger payloads to be launched than is currently possible with cylindrical fairings. This fairing would be usable on existing launch vehicles without extensive modifications of those launch vehicles and would minimize in-flight instability conditions, reduce lateral force induced peak stresses in the fairing, and minimize the effects on the launch vehicle GNC system. An analysis-driven design approach will be used to evaluate a series of geometric concepts for the fairing before selecting one for further development in a Phase II program. Extensive CFD analysis and shape optimization of these concepts will be carried out to identify one or two geometries which result in the desired aerodynamic and launch vehicle interface loads. The dynamic load response of these geometries will then be evaluated and a preliminary structural design defined. Panel flutter and buffet concerns will also be addressed. The result of this Phase I program will be a very large asymmetric fairing design concept which shows a very high probability of meeting all requirements and which can serve as the basis for a more detailed Phase II design effort, including prototype development.

* information listed above is at the time of submission.

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