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GVT-Based Ground Flutter Test without Wind Tunnel

Award Information

National Aeronautics and Space Administration
Award ID:
Program Year/Program:
2008 / STTR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
ZONA Technology, Inc.
9489 E. Ironwood Square Drive Scottsdale, AZ 85258-
View profile »
Woman-Owned: No
Minority-Owned: Yes
HUBZone-Owned: No
Phase 1
Fiscal Year: 2008
Title: GVT-Based Ground Flutter Test without Wind Tunnel
Agency: NASA
Contract: NNX08CD34P
Award Amount: $99,913.00


ZONA Technology, Inc (ZONA) and Arizona State University (ASU) propose a R&D effort to develop a ground flutter testing system without wind tunnel, called the Dry Wind Tunnel (DWT) system. The DWT system consists of a ground vibration test (GVT) hardware system and a real-time unsteady aerodynamic force generation software developed from an aerodynamic reduced order model (ROM). The ground flutter test using the DWT system operates on the real structural model, thereby no scale-down structural model is involved. Furthermore, the impact of the structural nonlinearities on the aeroelastic stability can be automatically included. Moreover, the aeroservoelastic characteristics of the aircraft can be easily measured by simply including the flight control system in the loop. In addition, the unsteady aerodynamics generated computationally is interference-free from the wind tunnel walls. Finally, the DWT can be conveniently and inexpensively carried out as a post GVT test with the same hardware. In Phase I, we will validate this DWT concept on a rectangular flat plate with a reference flutter solution. Through this validation process, the most significant hardware issues will be resolved to pave the way for a successful Phase II validation on a complex structure, such as a real aircraft.

Principal Investigator:

Ping-Chih Chen
Principal Investigator

Business Contact:

Jennifer Scherr
Business Official
Small Business Information at Submission:

ZONA Technology, Inc.
9489 E. Ironwood Square Drive Scottsdale, AZ 85258

EIN/Tax ID: 860540628
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
Arizona State University
P.O. Box 873503
Tempe, AZ 85287-3503
Contact Phone: (480) 965-1158
RI Type: Nonprofit college or university