Singular Perturbation Techniques for On-Line Optimal Flight-Path Control

1981 ◽  
Vol 4 (4) ◽  
pp. 398-405 ◽  
Author(s):  
Anthony J. Calise
Keyword(s):  
Singular Perturbation ◽  
Flight Path ◽  
Perturbation Techniques ◽  
Path Control ◽  
On Line

Stall Spin Flight Path Control Using Parallel Yaw-Periodic Linear Quadratic and Robust H∞ Controllers

2022 ◽  
Author(s):  
Jeremy W. Hopwood ◽  
James L. Gresham ◽  
Craig A. Woolsey
Keyword(s):  
Flight Path ◽  
Linear Quadratic ◽  
Path Control ◽  
Periodic Linear

On-line free-flight path optimization based on improved genetic algorithms

2004 ◽  
Vol 17 (8) ◽  
pp. 897-907 ◽  
Author(s):  
Xiao-Bing Hu ◽  
Shu-Fan Wu ◽  
Ju Jiang
Keyword(s):  
Genetic Algorithms ◽  
Flight Path ◽  
Path Optimization ◽  
Free Flight ◽  
On Line ◽  
Flight Path Optimization

Optimal perturbation guidance with constraints on terminal flight-path angle and angle of attack

2019 ◽  
Vol 233 (12) ◽  
pp. 4436-4446
Author(s):  
Penglei Zhao ◽  
Wanchun Chen ◽  
Wenbin Yu
Keyword(s):  
Optimal Control ◽  
Singular Perturbation ◽  
Time Scale ◽  
Angle Of Attack ◽  
Flight Path ◽  
Superior Performance ◽  
Optimal Perturbation ◽  
Optimal Guidance ◽  
Flight Path Angle ◽  
Guidance Problem

This paper presents the design of a singular-perturbation-based optimal guidance with constraints on terminal flight-path angle and angle of attack. By modeling the flight-control system dynamics as a first-order system, the angle of attack is introduced into the performance index as a state variable. To solve the resulting high-order optimal guidance problem analytically, the posed optimal guidance problem is divided into two sub-problems by utilizing the singular perturbation method according to two time scales: range, altitude, and flight-path angle are the slow time-scale variables while the angle of attack is the fast time-scale variable. The outer solutions are the optimal control of the slow-scale subsystem. Thereafter, by applying the stretching transformation, the fast-scale subsystem establishes the relationships between the outer solutions and acceleration command. Then, the optimal command can be obtained by solving the fast-scale subsystem also using the optimal control theory. The proposed guidance can achieve a near-zero terminal acceleration as well as a small miss distance. The superior performance of the guidance is demonstrated by adequate trajectory simulations.

scholarly journals Applications of Singular Perturbation Techniques to Control Problems

SIAM Review ◽  
1984 ◽  
Vol 26 (4) ◽  
pp. 501-550 ◽  
Author(s):  
Petar V. Kokotović
Keyword(s):  
Singular Perturbation ◽  
Control Problems ◽  
Perturbation Techniques

On the shape of small sessile and pendant drops by singular perturbation techniques

1991 ◽  
Vol 233 ◽  
pp. 519-537 ◽  
Author(s):  
S. B. G. O'Brien
Keyword(s):  
Boundary Layer ◽  
Singular Perturbation ◽  
Asymptotic Expansions ◽  
Numerical Results ◽  
Matched Asymptotic Expansions ◽  
Perturbation Techniques ◽  
Pendant Drop ◽  
Asymptotic Expressions ◽  
Good Agreement ◽  
Pendant Drops

The problem of obtaining asymptotic expressions describing the shape of small sessile and pendant drops is revisited. Both cases display boundary-layer behaviour and the method of matched asymptotic expansions is used to obtain solutions. These give good agreement when compared with numerical results. The sessile solutions are relatively straightforward, while the pendant drop displays a behaviour which is both rich and interesting.

1P1-S-058 Automatic Flight Path Control of Small UAV with Delta-Wing(Flying Robot 1,Mega-Integration in Robotics and Mechatronics to Assist Our Daily Lives)

2005 ◽  
Vol 2005 (0) ◽  
pp. 88
Author(s):  
MASANOBU NAGATA ◽  
MAKOTO KUMON ◽  
RYUICHI KOUZAWA ◽  
IKURO MIZUMOTO ◽  
ZENTA IWAI
Keyword(s):  
Delta Wing ◽  
Flight Path ◽  
Daily Lives ◽  
Path Control ◽  
Small Uav ◽  
Flying Robot

2103 Flight Control System and On-line Flight Path Generation for Aircraft with Failures

2005 ◽  
Vol 2005.14 (0) ◽  
pp. 211-214
Author(s):  
Yuhi SUZUKI ◽  
Shinji SUZUKI ◽  
Kazuya MASUI ◽  
Hirishi TOMITA
Keyword(s):  
Control System ◽  
Flight Control ◽  
Flight Path ◽  
Path Generation ◽  
Flight Control System ◽  
On Line
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