Rotor-Airwake Aerodynamic Coupling in Real-Time Simulation

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-11-C-0087
Agency Tracking Number: N103-195-0143
Amount: $149,974.00
Phase: Phase I
Program: SBIR
Awards Year: 2011
Solicitation Year: 2010
Solicitation Topic Code: N103-195
Solicitation Number: 2010.3
Small Business Information
6210 Kellers Church Road, Pipersville, PA, -
DUNS: 929950012
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Jeremy Shipman
 Research Scientist
 (215) 766-1520
 shipman@craft-tech.com
Business Contact
 Brian York
Title: Treasurer&Principal Sci
Phone: (215) 766-1529
Email: york@craft-tech.com
Research Institution
 Stub
Abstract
An innovative approach for incorporating the coupled interaction between a ship airwake and rotor downwash in real-time dynamic interface simulations is proposed. The approach will use a database of high-fidelity ship-alone and coupled rotor-ship airwake CFD simulations to train an artificial neural network (ANN) based model of the recirculation effects due to the rotor downwash interaction with ship structures. Once trained, the ANN model will provide a real-time correction factor to the rotor inflow velocities used by the rotor model in the flight simulation. The ANN model will thus provide a portable, fast-running, plug-in model to the flight simulator that will work with the current rotor and airwake models employed in the NAVAIR Manned Flight Simulator (MFS). Phase I will evaluate the feasibility of this approach for a single ship-rotorcraft combination and a fixed approach path, and assess the suitability of the model by comparing to a fully coupled CFD simulation. In Phase II, the ANN model would be trained with a larger database of simulations, expanding the applicability of the model for a full helicopter simulation, and be implemented into the MFS flight simulator. Phase III would involve expanding the model for all ship-aircraft combinations of interest.

* Information listed above is at the time of submission. *

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