Application of C-minimax optimal control theory to flight control problems

1968 ◽  
Author(s):  
C. JOHNSON ◽  
J. REDUS
Keyword(s):  
Optimal Control ◽  
Control Theory ◽  
Flight Control ◽  
Optimal Control Theory ◽  
Control Problems ◽  
Minimax Optimal Control

scholarly journals CONSTRAINT ALGORITHM FOR EXTREMALS IN OPTIMAL CONTROL PROBLEMS

2009 ◽  
Vol 06 (07) ◽  
pp. 1221-1233 ◽  
Author(s):  
MARÍA BARBERO-LIÑÁN ◽  
MIGUEL C. MUÑOZ-LECANDA
Keyword(s):  
Optimal Control ◽  
Maximum Principle ◽  
Optimal Control Problem ◽  
Control Theory ◽  
Control Problem ◽  
Optimal Control Theory ◽  
Optimal Control Problems ◽  
Necessary Conditions ◽  
Control Problems ◽  
Affine System

A geometric method is described to characterize the different kinds of extremals in optimal control theory. This comes from the use of a presymplectic constraint algorithm starting from the necessary conditions given by Pontryagin's Maximum Principle. The algorithm must be run twice so as to obtain suitable sets that once projected must be compared. Apart from the design of this general algorithm useful for any optimal control problem, it is shown how to classify the set of extremals and, in particular, how to characterize the strict abnormality. An example of strict abnormal extremal for a particular control-affine system is also given.

scholarly journals Hover flight control of helicopter using optimal control theory

2015 ◽  
Vol 7 (3) ◽  
pp. 113-24
Author(s):  
ABOULFTOUH Ahmed ◽  
◽  
EL-BAYOUMI Gamal ◽  
MADBOULI Mohamed ◽  
◽  
...  
Keyword(s):  
Optimal Control ◽  
Control Theory ◽  
Flight Control ◽  
Optimal Control Theory ◽  
Hover Flight

scholarly journals 109 Highly Accurate Autonomous Flight Control of Small Unmanned Helicopter by using Optimal Control Theory

2003 ◽  
Vol 2003 (0) ◽  
pp. _109-1_-_109-6_
Author(s):  
Kensaku HAZAWA ◽  
Jinok SHIN ◽  
Daigo FUJIWARA ◽  
Kazuhiro IGARASHI ◽  
Dilshan FERNANDO ◽  
...  
Keyword(s):  
Optimal Control ◽  
Control Theory ◽  
Flight Control ◽  
Optimal Control Theory ◽  
Unmanned Helicopter ◽  
Autonomous Flight ◽  
Small Unmanned Helicopter

Flight Control Law Clearance Using Optimal Control Theory

2016 ◽  
Vol 53 (2) ◽  
pp. 515-529 ◽  
Author(s):  
Avriel A. Herrmann ◽  
Joseph Z. Ben-Asher
Keyword(s):  
Optimal Control ◽  
Control Theory ◽  
Flight Control ◽  
Optimal Control Theory ◽  
Control Law

Dispersion of nanoparticles with optimal control theory based on destabilization

2014 ◽  
Vol 2 ◽  
pp. 86-86
Author(s):  
Miki U. Kobayashi ◽  
Nobuaki Aoki ◽  
Noriyoshi Manabe ◽  
Tadafumi Adschiri
Keyword(s):  
Optimal Control ◽  
Control Theory ◽  
Optimal Control Theory ◽  
Dispersion Of Nanoparticles

scholarly journals Recoil control of deepwater drilling riser system based on optimal control theory

2020 ◽  
pp. 108473
Author(s):  
Xiuquan Liu ◽  
Zhaowei Liu ◽  
Xianglei Wang ◽  
Nan Zhang ◽  
Na Qiu ◽  
...  
Keyword(s):  
Optimal Control ◽  
Control Theory ◽  
Optimal Control Theory ◽  
Deepwater Drilling

scholarly journals Optimal Control for a COVID-19 Model Accounting for Symptomatic and Asymptomatic

2020 ◽  
Vol 8 (1) ◽  
pp. 168-179
Author(s):  
Jead M. Macalisang ◽  
Mark L. Caay ◽  
Jayrold P. Arcede ◽  
Randy L. Caga-anan
Keyword(s):  
Optimal Control ◽  
Control Theory ◽  
Medical Care ◽  
Optimal Control Theory ◽  
Comparable Result ◽  
Type Model ◽  
Hospital Beds ◽  
Transmission Reduction ◽  
Bed Capacity ◽  
The Government

AbstractBuilding on an SEIR-type model of COVID-19 where the infecteds are further divided into symptomatic and asymptomatic, a system incorporating the various possible interventions is formulated. Interventions, also referred to as controls, include transmission reduction (e.g., lockdown, social distancing, barrier gestures); testing/isolation on the exposed, symptomatic and asymptomatic compartments; and medical controls such as enhancing patients’ medical care and increasing bed capacity. By considering the government’s capacity, the best strategies for implementing the controls were obtained using optimal control theory. Results show that, if all the controls are to be used, the more able the government is, the more it should implement transmission reduction, testing, and enhancing patients’ medical care without increasing hospital beds. However, if the government finds it very difficult to implement the controls for economic reasons, the best approach is to increase the hospital beds. Moreover, among the testing/isolation controls, testing/isolation in the exposed compartment is the least needed when there is significant transmission reduction control. Surprisingly, when there is no transmission reduction control, testing/isolation in the exposed should be optimal. Testing/isolation in the exposed could seemingly replace the transmission reduction control to yield a comparable result to that when the transmission reduction control is being implemented.

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