Journal ArticleDOI
Stalling Characteristics of a General Aviation Aircraft
Robert F. Stengel,W. Barry Nixon +1 more
TLDR
In this paper, the authors compared the stalling characteristics of a single-engine aircraft with flight test results using nonlinear simulation and linear stability and control evaluation, using aerodynamic and thrust characteristics obtained from a full-scale test in the NASA Langley Research Center 30 X 60ft Wind Tunnel as well as subscaie model test data.Abstract:
Analytical and numerical estimates of the stalling characteristics of a small, single-engine aircraft are compared with flight test results. Analyses include nonlinear simulation and linear stability-and-control evaluation, using aerodynamic and thrust characteristics obtained from a full-scale test in the NASA Langley Research Center 30 X 60-ft Wind Tunnel as well as subscaie model test data. Flight tests include prestall calibration runs, symmetric gradual stalls, and mildly accelerated stalls in the vertical plane. These tests tend to confirm predictions based upon wind-tunnel results, and they indicate areas in which special care must be taken in collecting data for aerodynamic parameter identification.read more
Citations
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Journal ArticleDOI
Flight control design using non-linear inverse dynamics
S. H. Lane,Robert F. Stengel +1 more
TL;DR: Inverse dynamics are generated for specific command variable sets of a 12-state nonlinear aircraft model to develop a control system that provides satisfactory response over the entire flight envelope.
Journal ArticleDOI
An alternative derivation of the modified gain function of Song and Speyer
P.J. Galkowski,M. A. Islam +1 more
TL;DR: Song et al. as mentioned in this paper derived a simpler derivation of the modified gain function for the bearings-only measurement problem as defined by T.L. Song et al., and showed the relationship between modified gain and the standard gain of an extended Kalman filter.
Journal ArticleDOI
Regulation of relaxed static stability aircraft
TL;DR: In this article, the authors formulate and solve a regulator problem for nonlinear parameter-dependent dynamics, and show that the problem is solvable except at parameter values associated with bifurcation of the equilibrium equations.
Journal ArticleDOI
Constructing linear families from parameter-dependent nonlinear dynamics
Harry G. Kwatny,Bor-Chin Chang +1 more
TL;DR: This work proposes an efficient method for computing local linear parameter-dependent families that can be constructed anywhere, specifically around bifurcation points where other methods fail.
References
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Book
Modern Control Theory
TL;DR: The relationship between state variable and transfer function descriptions of linear feedback control systems is discussed in this paper, along with the relationship between the Cayley Hamilton Theorem and state variable descriptions of systems.
Full-scale wind-tunnel investigation of the static longitudinal and lateral characteristics of a light single-engine low- wing airplane
TL;DR: In this paper, wind tunnel analysis of static longitudinal and lateral characteristics of light single engine low wing airplane was performed in the presence of a single engine and a single winged aircraft.
Journal ArticleDOI
Historical Overview of Stall/Spin Characteristics of General Aviation Aircraft
TL;DR: In this article, the authors review the primary factors which have affected stall/spin behavior of general aviation aircraft over the history of flight in order to obtain a better understanding of the tradeoffs in avoidance of stall and spin.
Journal ArticleDOI
Equilibrium response of flight control systems
TL;DR: In this paper, the steady state behavior of an aircraft in response to control and disturbance inputs has a major impact on its performance and flying qualities, and it is, to a large extent, not readily predicted by the aircraft's stability and transient behavior.