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A relaxed structural mechanics and fuzzy control for fluid–structure dynamic analysis

A relaxed structural mechanics and fuzzy control for fluid–structure dynamic analysis This paper aims to deal with the problem of the global stabilization for a class of tension leg platform (TLP) nonlinear control systems.Design/methodology/approachIt is well-known that, in general, the global asymptotic stability of the TLP subsystems does not imply the global asymptotic stability of the composite closed-loop system.FindingsAn effective approach is proposed to control chaos via the combination of fuzzy controllers, fuzzy observers and dithers.Research limitations/implicationsIf a fuzzy controller and a fuzzy observer cannot stabilize the chaotic system, a dither, as an auxiliary of the controller and the observer, is simultaneously introduced to asymptotically stabilize the chaotic system.Originality/valueThus, the behavior of the closed-loop dithered chaotic system can be rigorously predicted by establishing that of the closed-loop fuzzy relaxed system. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Engineering Computations Emerald Publishing

A relaxed structural mechanics and fuzzy control for fluid–structure dynamic analysis

Engineering Computations , Volume 36 (7): 20 – Sep 12, 2019

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Publisher
Emerald Publishing
Copyright
© Emerald Publishing Limited
ISSN
0264-4401
DOI
10.1108/ec-11-2018-0522
Publisher site
See Article on Publisher Site

Abstract

This paper aims to deal with the problem of the global stabilization for a class of tension leg platform (TLP) nonlinear control systems.Design/methodology/approachIt is well-known that, in general, the global asymptotic stability of the TLP subsystems does not imply the global asymptotic stability of the composite closed-loop system.FindingsAn effective approach is proposed to control chaos via the combination of fuzzy controllers, fuzzy observers and dithers.Research limitations/implicationsIf a fuzzy controller and a fuzzy observer cannot stabilize the chaotic system, a dither, as an auxiliary of the controller and the observer, is simultaneously introduced to asymptotically stabilize the chaotic system.Originality/valueThus, the behavior of the closed-loop dithered chaotic system can be rigorously predicted by establishing that of the closed-loop fuzzy relaxed system.

Journal

Engineering ComputationsEmerald Publishing

Published: Sep 12, 2019

Keywords: Structural mechanics; Intelligent control function; Chaotic relaxed form; Automated design

References