Nonlinear modeling of a moored floating platform in stochastic environment

Author

Jordán, Mario A. ; Duga, Gabriel E.

Author_Institution

Electr. Eng. Dept., Univ. Nacional del Sur, Bahia Blanca, Argentina

Volume

2

fYear

1998

fDate

21-26 Jun 1998

Firstpage

1094

Abstract

In this work the phases for physical modeling of a scale prototype of semisubmergible floating platform in stochastic environment are presented. The model takes into account embedded actuators for dynamic positioning and levelling in six degrees of freedom which allow the platform to be global controllable. In the modelation of environment the effects of waves are separated into high- and low-frequency components. This division is appropriate for the different actuators. The resulting state-space model is highly nonlinear mainly due to the change of ballast in each vessel and due to the structure of the fluid interaction dynamic

Keywords

actuators; controllability; marine systems; nonlinear systems; state-space methods; stochastic systems; actuators; ballast; dynamic positioning; embedded actuators; fluid interaction dynamic; global controllability; high-frequency components; levelling; low-frequency components; moored floating platform; nonlinear modeling; scale prototype; semisubmergible floating platform; state-space model; stochastic environment; waves; Actuators; Control systems; Electronic ballasts; Fluid dynamics; Gyroscopes; Hydrodynamics; Nonlinear dynamical systems; Prototypes; Stochastic processes; Stochastic systems;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 1998. Proceedings of the 1998

Conference_Location

Philadelphia, PA

ISSN

0743-1619

Print_ISBN

0-7803-4530-4

Type

conf

DOI

10.1109/ACC.1998.703580

Filename

703580