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Algorithm for Simulating Atmospheric Turbulence and Aeroelastic Effects on Simulator Motion Systems
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Author and Affiliation:
Ercole, Anthony V.(State Univ. of New York, Binghamton, NY, United States);
Cardullo, Frank M.(State Univ. of New York, Binghamton, NY, United States);
Kelly, Lon C.(Unisys Corp., Hampton, VA, United States);
Houck, Jacob A.(NASA Langley Research Center, Hampton, VA, United States)
Abstract: Atmospheric turbulence produces high frequency accelerations in aircraft, typically greater than the response to pilot input. Motion system equipped flight simulators must present cues representative of the aircraft response to turbulence in order to maintain the integrity of the simulation. Currently, turbulence motion cueing produced by flight simulator motion systems has been less than satisfactory because the turbulence profiles have been attenuated by the motion cueing algorithms. This report presents a new turbulence motion cueing algorithm, referred to as the augmented turbulence channel. Like the previous turbulence algorithms, the output of the channel only augments the vertical degree of freedom of motion. This algorithm employs a parallel aircraft model and an optional high bandwidth cueing filter. Simulation of aeroelastic effects is also an area where frequency content must be preserved by the cueing algorithm. The current aeroelastic implementation uses a similar secondary channel that supplements the primary motion cue. Two studies were conducted using the NASA Langley Visual Motion Simulator and Cockpit Motion Facility to evaluate the effect of the turbulence channel and aeroelastic model on pilot control input. Results indicate that the pilot is better correlated with the aircraft response, when the augmented channel is in place.
Publication Date: Aug 01, 2012
Document ID:
20120014294
(Acquired Oct 05, 2012)
Subject Category: MAN/SYSTEM TECHNOLOGY AND LIFE SUPPORT
Report/Patent Number: NASA/TM-2012-217601, L-20173, NF1676L-15219
Document Type: Technical Report
Contract/Grant/Task Num: WBS 160961.01.01.01
Financial Sponsor: NASA Langley Research Center; Hampton, VA, United States
Organization Source: NASA Langley Research Center; Hampton, VA, United States
Description: 174p; In English; Original contains color and black and white illustrations
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright; Distribution as joint owner in the copyright
NASA Terms: AEROELASTICITY; ALGORITHMS; ATMOSPHERIC TURBULENCE; BANDWIDTH; FLIGHT SIMULATORS; HIGH FREQUENCIES; MOTION SIMULATORS; SIMULATION; TURBULENCE; TURBULENCE EFFECTS; TURBULENCE MODELS
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