Practical aspects of modeling aircraft dynamics from flight data [PDF]
, 1984 The purpose of parameter estimation, a subset of system identification, is to estimate the coefficients (such as stability and control derivatives) of the aircraft differential equations of motion from sampled measured dynamic responses. In the past, the
Kenneth W. Iliff, Richard E. Maine
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Pesticide exposure affects flight dynamics and reduces flight endurance in bumblebees. [PDF]
Ecol Evol, 2019 Kenna D +5 more
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Flight Investigation of Gyroplane Longitudinal Flight Dynamics [PDF]
This Paper presents an analysis of test data recorded during flight trials of a gyroplane. This class of rotarywing\ud aircraft has found limited application in areas other than sport or recreational flying. However, the accident\ud rate is such that a study of the configuration's stability and control characteristics is timely, and in addition\ud ...
Thomson, Douglas, Houston, Stewart
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Maneuver Strategy for Active Spacecraft to Avoid Space Debris and Return to the Original Orbit
International Journal of Aerospace Engineering, 2022 During normal operation of the on-orbit spacecraft, if some satellite in a nearby orbit suddenly breaks apart, its debris will threat the safe operation of the on-orbit spacecraft.
Qun Fang +4 more
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The long-term transport and radiative impacts of the 2017 British Columbia pyrocumulonimbus smoke aerosols in the stratosphere [PDF]
Atmospheric Chemistry and Physics, 2021 Interactions of meteorology with wildfires in British Columbia, Canada, during August 2017 led to three major pyrocumulonimbus (pyroCb) events that resulted in the injection of large amounts of smoke aerosols and other combustion products at the local ...
S. Das +6 more
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Aerospace, 2021 The modern trend of developing highly automated aircraft is characterized by a transition from traditional methods and technical solutions to innovative approaches in order to control the system, inceptor and display design.
Alexandr V. Efremov +2 more
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Required Moment Sets: Enhanced Controllability Analysis for Nonlinear Aircraft Models
Applied Sciences, 2021 Attainable moment sets (AMS) are a powerful method to assess aircraft controllability. However, as attainable moment sets only take into account the achievable moment set of the control effectors, they do not assess the required moment set to fulfill the
Max Söpper +3 more
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Trajectory/Path-Following Controller Based on Nonlinear Jerk-Level Error Dynamics
Applied Sciences, 2020 This study proposes a novel, nonlinear trajectory/path-following controller based on jerk-level error dynamics. Therefore, at first the nonlinear acceleration-based kinematic equations of motion of a dynamic system are differentiated with respect to time
Patrick Piprek +3 more
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A machine learning methodology for the generation of a parameterization of the hydroxyl radical [PDF]
Geoscientific Model Development, 2022 We present a methodology that uses gradient-boosted regression trees (a machine learning technique) and a full-chemistry simulation (i.e., training dataset) from a chemistry–climate model (CCM) to efficiently generate a parameterization of tropospheric ...
D. C. Anderson +13 more
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A new airborne laser-induced fluorescence instrument for in situ detection of formaldehyde throughout the troposphere and lower stratosphere [PDF]
Atmospheric Measurement Techniques, 2015 The NASA In Situ Airborne Formaldehyde (ISAF) instrument is a high-performance laser-based detector for gas-phase formaldehyde (HCHO). ISAF uses rotational-state specific laser excitation at 353 nm for laser-induced fluorescence (LIF) detection of HCHO ...
M. Cazorla +5 more
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