Title :
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
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;
Conference_Titel :
Control, Automation and Systems (ICCAS), 2012 12th International Conference on
Conference_Location :
JeJu Island
Print_ISBN :
978-1-4673-2247-8
