Abstract
A full-coupled three-dimensional dynamic model of a towed cable body system is developed. The towed cable with the axial elasticity, bending stiffness, and torsional stiffness is approximated by the finite difference method. The towed body is model as a rigid body with six degrees of freedom that seamlessly incorporated into the cable dynamics. The generalized alpha algorithm is applied as the time integration method. First, the sensitivity analysis of the different time integration methods and the number of elements impacting the dynamic response is conducted. Then, numerical simulations are conducted for different maneuvers, the straight tow and the U-turn tow, and the results are compared to the experimental sea trial data. The comparison results show the proposed approach matches the sea trial data well, and the prediction response based on the proposed method is reliable.
Published Version
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