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Flight Dynamic Simulation with Nonlinear Aeroelastic Interaction using the…

Award Information

Agency:
National Aeronautics and Space Administration
Branch:
N/A
Award ID:
95268
Program Year/Program:
2010 / SBIR
Agency Tracking Number:
094184
Solicitation Year:
N/A
Solicitation Topic Code:
A2
Solicitation Number:
N/A
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: 2010
Title: Flight Dynamic Simulation with Nonlinear Aeroelastic Interaction using the ROM-ROM Procedure
Agency: NASA
Contract: NNX10CC07P
Award Amount: $99,963.00
 

Abstract:

ZONA Technology, Inc. (ZONA) proposes to develop an integrated flight dynamics simulation capability with nonlinear aeroelastic interactions by combining a flight dynamics model and an added-on nonlinear aeroelastic solver in a Simulink environment. This nonlinear aeroelastic solver is generated by interacting a nonlinear structural reduced order model (ROM) with a Neural-Network-based (NN-based) aerodynamic ROM, called the ROM-ROM procedure, to provide the incremental aeroelastic forces and moments to a given flight dynamics model. In this way, the flight dynamics model is kept with minimum changes so that this integrated flight dynamics simulation remains in the frame work of a 6 degrees-of-freedom simulation environment. The nonlinear structural ROM employs a so-called ELSTEP/FAT procedure that operates on a nonlinear finite element method, such as MSC.Nastrans solution 106 to construct a set of modal-based nonlinear stiffness matrices. The NN-based aerodynamic ROM is generated using a system identification technique operating on a CFD code to evaluate the weights and biases in a two-layer feed-forward neural network system. The end product is called NL-DFS which can simulate the key aeroelastic coupling mechanism between nonlinear structural dynamics and nonlinear unsteady aerodynamics with classical rigid body dynamics of a slender, flexible and sizable aircraft in nonlinear aerodynamic flight conditions.

Principal Investigator:

Ping Chih Chen
Principal Investigator
4809459988
pc@zonatech.com

Business Contact:

Jennifer Scherr
Business Official
4809459988
jennifer@zonatech.com
Small Business Information at Submission:

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

EIN/Tax ID: 860540628
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No