scholarly journals Preliminary Test Results for Stability and Control Characteristics of a Generic T-tail Transport Airplane at High Angle of Attack

2018 ◽  
Author(s):  
Kevin Cunningham ◽  
Gautam H. Shah ◽  
Neal T. Frink ◽  
Susan N. McMillin ◽  
Patrick C. Murphy ◽  
...  
Keyword(s):  
Angle Of Attack ◽  
Preliminary Test ◽  
Test Results ◽  
High Angle ◽  
High Angle Of Attack ◽  
Stability And Control ◽  
And Control

High-angle-of-attack stability and control improvements for the EA-6B Prowler

1987 ◽  
Author(s):  
FRANK JORDAN ◽  
DAVID HAHNE ◽  
MATTHEW MASIELLO ◽  
WILLIAM GATO
Keyword(s):  
Angle Of Attack ◽  
High Angle ◽  
High Angle Of Attack ◽  
Stability And Control ◽  
And Control

scholarly journals The choice of sliding surface for robust roll control: Better suppression of high angle of attack/sideslip perturbations

2018 ◽  
Vol 10 (4) ◽  
pp. 330-339 ◽  
Author(s):  
S Seyedtabaii ◽  
M Delavari
Keyword(s):  
Sliding Mode ◽  
Angle Of Attack ◽  
Sliding Surface ◽  
High Angle ◽  
High Angle Of Attack ◽  
Control Effort ◽  
Roll Control ◽  
Dynamic Uncertainty ◽  
Aerodynamic Parameters ◽  
And Control

The nominal aerodynamic parameters of aircraft are often approximate and aircraft may experience high value of angle of attack/sideslip perturbations during their manoeuvres. Preventing instability and air crash requires a robust controller capable of containing the dynamic uncertainty and the perturbations. In this respect, the problems of roll control in such a situation are studied and a better choice of sliding surface is proposed. Sliding mode control manages the uncertainty and adaptive fuzzy is employed to shape the transient response. As a result, a setup is formed which outperforms the basic controller both in terms of transient speed, response robustness and control effort. The strength of the method is more appreciated in case of high angle of attack/sideslip perturbed manoeuvres. This is proved theoretically and illustrated by simulations.

Research on Unsteady Aerodynamics Modeling Based on Back Propagation Algorithm at High Angle of Attack

2013 ◽  
Vol 392 ◽  
pp. 170-177 ◽  
Author(s):  
Hong Biao Wang ◽  
Bin Bin Lv ◽  
Xiao Juan Yang ◽  
Tai Yuan Luo
Keyword(s):  
Neural Network ◽  
Network Model ◽  
Neural Network Model ◽  
Bp Neural Network ◽  
Angle Of Attack ◽  
Unsteady Aerodynamics ◽  
Test Results ◽  
High Angle ◽  
High Angle Of Attack ◽  
Bp Neural Network Model

with the BP algorithm, this paper sets up the High angle of attack unsteady aerodynamic neural network model. By using the large-amplitude pitch oscillation dynamic test data of some slender model in high-speed wind tunnel, this paper trains and verifies the BP neural network model and discusses elements which may influence the arithmetic speed and prediction accuracy of the neural network model. Test results show that the established BP neural network model matches the wind tunnel test results nicely and has relatively good capacity to predict the High angle of attack unsteady aerodynamics.

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