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Citation:
 T. L. Nguyen,K. D. Do and J. Pan.Boundary Control of Coupled Nonlinear Three Dimensional Marine Risers[J].Journal of Marine Science and Application,2013,(1):72-88.[doi:10.1007/s11804-013-1175-8]
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Boundary Control of Coupled Nonlinear Three Dimensional Marine Risers

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Title:
Boundary Control of Coupled Nonlinear Three Dimensional Marine Risers
Author(s):
T. L. Nguyen K. D. Do and J. Pan
Affilations:
Author(s):
T. L. Nguyen K. D. Do and J. Pan
1. School of Mechanical and Chemical Engineering, The University of Western Australia, WA 6009, Australia 2. Department of Mechanical Engineering, Curtin University, WA 6102, Australia 3. School of Mechanical and Chemical Engineering, The University of Western Australia, WA 6009, Australia
Keywords:
marine risers boundary control nonlinear dynamics equations of motion nonlinear couplings
分类号:
-
DOI:
10.1007/s11804-013-1175-8
Abstract:
This paper presents a design of boundary controllers implemented at the top end for global stabilization of a marine riser in a three dimensional space under environmental loadings. Based on the energy approach, nonlinear partial differential equations of motion, including bending-bending and longitudinal-bending couplings for the risers are derived. The couplings cause mutual effects between the three independent directions in the riser’s motions, and make it difficult to minimize its vibrations. The Lyapunov direct method is employed to design the boundary controller. It is shown that the proposed boundary controllers can effectively reduce the riser’s vibration. Stability analysis of the closed-loop system is performed using the Lyapunov direct method. Numerical simulations illustrate the results.

References:

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Last Update: 2013-03-14