A kinematic/kinetic hybrid airplane simulator model.
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2008
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NTL Classification:NTL-AVIATION-AVIATION;NTL-AVIATION-Aviation Safety/Airworthiness;
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Abstract:A kinematics-based flight model, for normal flight
regimes, currently uses precise flight data to achieve a high
level of aircraft realism. However, it was desired to further
increase the model’s accuracy, without a substantial increase in
program complexity, by determining the vertical velocity and
vertical acceleration using EUROCONTROL’s Base of Aircraft
DAta (BADA) model [1]. BADA is a well-known aircraft
performance database model maintained and developed by
EUROCONTROL Experimental Centre in France.
The hybrid model uses the BADA algorithm to determine the
vertical velocity and gives original results for determining the
vertical acceleration. The approximate accuracy of these
vertical parameters was checked by comparing them with preexisting
test distributions [2] and an in-house flight simulator
application. The hybrid model uses kinematic algorithms for all
other functions and parameters. To obtain specific results, C
code was written to access text data from BADA’s collection of
approximately one hundred airplanes. Accessing this database
causes an increase in overall program execution time that was
deemed acceptable due to the infrequency of changing plane
types. Also, by examining many airplane trajectories obtained
from different BADA airplanes, we determined that the model is
accurate enough to uniquely represent many different types of
aircraft.
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