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http://dx.doi.org/10.5574/KSOE.2016.30.6.458

3D Nonlinear Fully Coupled Simulation of Cable and Tow-fish System  

Go, Gwangsoo (School of Naval Architecture and Ocean Engineering, University of Ulsan)
Lee, Euntaek (School of Naval Architecture and Ocean Engineering, University of Ulsan)
Ahn, Hyung Taek (School of Naval Architecture and Ocean Engineering, University of Ulsan)
Publication Information
Journal of Ocean Engineering and Technology / v.30, no.6, 2016 , pp. 458-467 More about this Journal
Abstract
In this paper, a strongly coupled method for investigating the interaction between a cable and tow-fish is presented. The nodal position finite element method was utilized to analyze the nonlinear cable dynamics, and 6DOF equations of motion were employed to describe the 3D rigid body motion of the tow-fish. Combining cable and tow-fish systems into a single formulation allowed the two nonlinear systems to be strongly coupled into a unified nonlinear system. This strongly coupled system was numerically integrated in the time domain using a predictor/multi-corrector Newmark algorithm. To demonstrate the validity, efficacy, and applicability of the current approach, two different scenarios (virtual and sea trial) were simulated, and the simulation results were validated using the physical plausibility and the sea trial test.
Keywords
Cable dynamics; Tow-fish; Nonlinear coupled simulation; Nodal position finite element method; 6DOF equations of motion; Predictor/multi-corrector Newmark algorithm;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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