State-space representation of radiation forces in time-domain vessel models |
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| Authors: | Erlend Kristiansen smund Hjulstad Olav Egeland |
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| Institution: | aCentre for Ships and Ocean Structures, NO-7491 Trondheim Norway;bNorwegian University of Science and Technology, NO-7491 Trondheim, Norway |
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| Abstract: | The paper presents a method for generating a new and efficient time-domain formulation of the equations of motion for a vessel with frequency-dependent hydrodynamic coefficients. Previous work on this topic has relied on the use of convolution terms, whereas in this work state-space models are used. This leads to a model formulation that is well suited for controller design and simulation. |
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| Keywords: | State-space realization Frequency-dependent characteristics Time-domain Convolution integral Discretization |
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