Boundary control of marine risers with bending couplings

Author

Nguyen, T.L. ; Do, K.D. ; Pan, J.

Author_Institution

Sch. of Mech. & Chem. Eng., Univ. of Western Australia, Perth, WA, Australia

fYear

2012

fDate

17-21 Oct. 2012

Firstpage

1615

Lastpage

1620

Abstract

The aim of this paper is to design a boundary controller at the top end for global stabilization of two-dimensional marine risers under environmental disturbances. Based on the energy approach, equations of motion of the risers including bending couplings are derived. Due to these couplings, the riser dynamics exhibit mutual effects between transverse motions. The Lyapunov direct method is used to design the boundary controller. Stability analysis of the closed-loop system is carried out using the Lyapunov stability theory. Numerical simulations illustrate the results.

Keywords

Lyapunov methods; bending; control system synthesis; marine control; mining equipment; nonlinear dynamical systems; numerical analysis; stability; Lyapunov direct method; Lyapunov stability theory; bending couplings; boundary controller design; closed loop system; energy approach; environmental disturbances; equations of motion; global stabilization; numerical simulations; riser dynamics; stability analysis; transverse motions; two-dimensional marine risers; Actuators; Couplings; Damping; Dynamics; Equations; Mathematical model; Marine risers; bending couplings; boundary control; equations of motion; nonlinear dynamics;

fLanguage

English

Publisher

ieee

Conference_Titel

Control, Automation and Systems (ICCAS), 2012 12th International Conference on

Conference_Location

JeJu Island

Print_ISBN

978-1-4673-2247-8

Type

conf

Filename

6393099