Deterministic versus evolutionary optimisation methods for nonlinear robustness analysis of flight control laws

2007 ◽  
Author(s):  
Prathyush P. Menon ◽  
Declan G. Bates ◽  
Ian Postlethwaite
Keyword(s):  
Flight Control ◽  
Robustness Analysis ◽  
Control Laws ◽  
Evolutionary Optimisation ◽  
Optimisation Methods

ROBUSTNESS ANALYSIS OF NONLINEAR FLIGHT CONTROL LAWS OVER CONTINUOUS REGIONS OF THE FLIGHT ENVELOPE

2006 ◽  
Vol 39 (9) ◽  
pp. 53-58 ◽  
Author(s):  
Prathyush P. Menon ◽  
Declan G. Bates ◽  
Ian Postlethwaite
Keyword(s):  
Flight Control ◽  
Robustness Analysis ◽  
Control Laws ◽  
Flight Envelope

Robustness Analysis of Two Advanced Flight Control Laws: NDI and INDI

2021 ◽  
pp. 660-668
Author(s):  
Fei Luo ◽  
Junhong Zhang ◽  
Biao Jiang
Keyword(s):  
Flight Control ◽  
Robustness Analysis ◽  
Control Laws

A NOVEL METHOD FOR FLIGHT CONTROL LAWS ROBUSTNESS ANALYSIS OVER UNSTEADY TRAJECTORIES

2007 ◽  
Vol 40 (7) ◽  
pp. 347-352 ◽  
Author(s):  
U. Tancredi ◽  
M. Grassi ◽  
F. Corraro ◽  
E. Filippone ◽  
R. Palumbo ◽  
...  
Keyword(s):  
Flight Control ◽  
Robustness Analysis ◽  
Control Laws ◽  
Novel Method

Nonlinear robustness analysis of flight control laws for highly augmented aircraft

2007 ◽  
Vol 15 (6) ◽  
pp. 655-662 ◽  
Author(s):  
Prathyush P. Menon ◽  
Declan G. Bates ◽  
Ian Postlethwaite
Keyword(s):  
Flight Control ◽  
Robustness Analysis ◽  
Control Laws

String Instabilities in Formation Flight: Limitations Due to Integral Constraints

2004 ◽  
Vol 126 (4) ◽  
pp. 873-879 ◽  
Author(s):  
P. Seiler ◽  
A. Pant ◽  
J. K. Hedrick
Keyword(s):  
Flight Control ◽  
Formation Control ◽  
Energy Savings ◽  
Feedback Loops ◽  
Formation Flight ◽  
Control Laws ◽  
Aerodynamic Efficiency ◽  
Preceding Vehicle ◽  
Specific Control ◽  
Theoretical Results

Flying in formation improves aerodynamic efficiency and, consequently, leads to an energy savings. One strategy for formation control is to follow the preceding vehicle. Many researchers have shown through simulation results and analysis of specific control laws that this strategy leads to amplification of disturbances as they propagate through the formation. This effect is known as string instability. In this paper, we show that string instability is due to a fundamental constraint on coupled feedback loops. The tradeoffs imposed by this constraint imply that predecessor following is an inherently poor strategy for formation flight control. Finally, we present two examples that demonstrate the theoretical results.

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