A Lagrangian approach to nonlinear modeling of anti-roll tanks
Holden, Christian, Perez, Tristan, & Fossen, Thor I. (2011) A Lagrangian approach to nonlinear modeling of anti-roll tanks. Ocean Engineering, 38(2-3), pp. 341-359.
This paper presents two novel nonlinear models of u-shaped anti-roll tanks for ships, and their linearizations. In addition, a third simplified nonlinear model is presented. The models are derived using Lagrangian mechanics. This formulation not only simplifies the modeling process, but also allows one to obtain models that satisfy energy-related physical properties. The proposed nonlinear models and their linearizations are validated using model-scale experimental data. Unlike other models in the literature, the nonlinear models in this paper are valid for large roll amplitudes. Even at moderate roll angles, the nonlinear models have three orders of magnitude lower mean square error relative to experimental data than the linear models.
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|Item Type:||Journal Article|
|Keywords:||Roll stabilization, Anti-roll tanks, u-Tanks, Lagrangian dynamics, Ship stability, Nonlinear systems|
|Divisions:||Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||© 2010 ElsevierLtd.Allrights reserved.|
|Deposited On:||30 Apr 2014 01:53|
|Last Modified:||16 May 2014 06:42|
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