Investigation of ship hydroelasticity |
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| Authors: | Ivo &#x;ime Stipe |
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| Institution: | aFaculty of Mechanical Engineering and Naval Architecture, University of Zagreb, I. Lučića 5, Zagreb, Croatia;bBureau Veritas, Paris, France |
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| Abstract: | The importance of hydroelastic analysis of large and flexible container ships of today is pointed out. A methodology for investigation of this challenging phenomenon is drawn up and a mathematical model is worked out. It includes definition of ship geometry, mass distribution, structure stiffness, and combines ship hydrostatics, hydrodynamics, wave load, ship motion and vibrations. Based on the presented theory, a computer program is developed and applied for hydroelastic analysis of a flexible segmented barge for which model test results of motion and distortion in waves have been available. A correlation analysis of numerical simulation and measured response shows quite good agreement of the transfer functions for heave, pitch, roll, vertical and horizontal bending and torsion. The tool checked in such a way can be further used for reliable hydroelastic analysis of ship-like structures. |
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| Keywords: | Ship hydroelasticity Mathematical model Segmented barge Numerical simulation Model tests |
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