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A Variable Stiffness Spar (VSS) Approach for Aircraft Maneuver Enhancement

Award Information

Agency:
Department of Defense
Branch:
Air Force
Award ID:
40965
Program Year/Program:
1998 / SBIR
Agency Tracking Number:
40965
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
ZONA Technology, Inc.
9489 E. Ironwood Square Drive Scottsdale, AZ 85258-4578
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Woman-Owned: No
Minority-Owned: Yes
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1998
Title: A Variable Stiffness Spar (VSS) Approach for Aircraft Maneuver Enhancement
Agency / Branch: DOD / USAF
Contract: N/A
Award Amount: $99,812.00
 

Abstract:

An innovative variable stiffness spar (VSS) approach is proposed for the enhancement of aircraft roll performance. F/A-18 pre-roll-modification aircraft (F/A-18 PRM) is selected as the baseline aircraft for its low torsional wing stiffness and available baseline data. The F/A-18 PRM, when integrated with VSS (F-18/VSS), requires only the outboard trailing-edge aileron for roll maneuver. The present objective is to explore when and how to best apply the F-18/VSS concept and to access its payoff in terms of weight impact, maximum performance, and ease of structural integration. The success of the F-18/VSS concept relies upon optimal design of the VSS stiffness scheduling with an ample range for VSS to apply post-reversal control for best roll maneuver while satisfying strength, flutter and gust response constraints.The feasibility study of the F-18/VSS concept will be performed using a proven engineering tool called ASTROS*. ASTROS* is the enhanced version of the MDO software ASTROS with the integrated ZAERO (unified unsteady/steady aerodynamics covernig subsonic to hypersonic Mach numbers) and ASE (aeroservoelastic optimization/analysis) modules. In addition, the impact of dynamic instability on roll performance will be investigated where a trade-off study between flutter suppression by passive and active means will be performed.

Principal Investigator:

Ping Chih Chen
6029459198

Business Contact:


0
Small Business Information at Submission:

ZONA TECHNOLOGY, INC.
7430 E. STETSON DRIVE Scottsdale, AZ 85251

EIN/Tax ID:
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No