Nonlinear Aerodynamics-Structure Time Simulation for HALE Aircraft Design/Analysis

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$99,844.00
Award Year:
2005
Program:
STTR
Phase:
Phase I
Contract:
NND05AA50C
Agency Tracking Number:
040077
Solicitation Year:
2004
Solicitation Topic Code:
T2.02
Solicitation Number:
n/a
Small Business Information
Zona Technology Inc
7430 E. Stetson Drive, Suite 205, Scottsdale, AZ, 85251-3540
Hubzone Owned:
N
Socially and Economically Disadvantaged:
Y
Woman Owned:
N
Duns:
18210
Principal Investigator:
Ping-Chih Chen
Principal Investigator
() -
pc@zonatech.com
Business Contact:
Jennifer Scherr
Business Official
(480) 945-9988
jennifer@zonatech.com
Research Institution:
Virginia Polytechnic Institute and State University
Bonnie Beasley
460 Turner Street, Suite 306
Blacksburg, VA, 24060
(540) 231-9393
Domestic nonprofit research organization
Abstract
Time simulation of a nonlinear aerodynamics model (NA) developed at Virginia Tech coupled with a nonlinear structure model (NS) is proposed as a design/analysis methodology for highly flexible HALE/morphing aircraft. With this nonlinear aero-structure (NAS) approach, large structure deformations and static/dynamic aeroelastic responses of such flexible aircraft can be properly accounted for including all dominant linear/nonlinear effects. The vortex dynamics coupling and spline procedure in NAS render it an ideal tool for expedient time simulations. The proof-of-concept example demonstrates the validity of the NA model and its aeroelastic applicability to a HALE flying wing in an open and closed loop control environment. Pathfinder/Helios flying wing will be selected as the candidate NAS feasibility study case. Further, ZONA Technology will integrate this methodology into an user-friendly, open-architecture software with a highly modular format using the ZONA Database Management (ZDM) system. Phase I effort will focus on the NAS for wing-only configurations. Phase II will enlarge our scope to include modules in time-domain gust, NAS-aeroservoelasticity, and interfacing with commercialized nonlinear structural FEM, and to increase the geometric complexity for wing-body and realistic aircraft configurations. The ZONA team intends to work closely with NASA and AeroVironment throughout these phases.

* information listed above is at the time of submission.

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