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Accession Number N20130014431
Title Simulation System Fidelity Assessment at the Vertical Motion Simulator.
Publication Date May 2013
Media Count 8p
Personal Author B. L. Aponso E. L. Tobias S. D. Beard S. E. Reardon
Abstract Fidelity is a word that is often used but rarely understood when talking about groundbased simulation. Assessing the cueing fidelity of a ground based flight simulator requires a comparison to actual flight data either directly or indirectly. Two experiments were conducted at the Vertical Motion Simulator using the GenHel UH-60A Black Hawk helicopter math model that was directly compared to flight data. Prior to the experiment the simulator s motion and visual system frequency responses were measured, the aircraft math model was adjusted to account for the simulator motion system delays, and the motion system gains and washouts were tuned for the individual tasks. The tuned motion system fidelity was then assessed against the modified Sinacori criteria. The first experiments showed similar handling qualities ratings (HQRs) to actual flight for a bob-up and sidestep maneuvers. The second experiment showed equivalent HQRs between flight and simulation for the ADS33 slalom maneuver for the two pilot participants. The ADS33 vertical maneuver HQRs were mixed with one pilot rating the flight and simulation the same while the second pilot rated the simulation worse. In addition to recording HQRs on the second experiment, an experimental Simulation Fidelity Rating (SFR) scale developed by the University of Liverpool was tested for applicability to engineering simulators. A discussion of the SFR scale for use on the Vertical Motion Simulator is included in this paper.
Keywords Accuracy
Aircraft maneuvers
Flight simulation
Mathematical models
Pilot ratings
Uh-60a helicopter
Vertical motion simulators

Source Agency National Aeronautics and Space Administration
NTIS Subject Category 85D - Transportation Safety
85A - Air Transportation
51A - Aerodynamics
51C - Aircraft
72B - Algebra, Analysis, Geometry, & Mathematical Logic
Corporate Author National Aeronautics and Space Administration, Moffett Field, CA. Ames Research Center.
Document Type Conference proceedings
Title Note N/A
NTIS Issue Number 1403
Contract Number NNA05BE28C NNX08AI34A

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