Hydrodynamic characteristics of coupling model of towing vessel and an articulated platform composed of eight boxes
The box-type articulated platform has important applications in ocean engineering.In this paper,a multi-module assembled box-type platform is described.The hydrodynamic performance of the platform by a towing vessel is nu-merically simulated,based on the three-dimensional velocity potential theory and the indirect time-domain method through the hydrodynamic module AQWA in Ansys.The results show that:1)The motion of the left and right modules of the box-type platform is basically consistent;2)In regular waves,the maximum heave motion of the platform exhibits a reciprocat-ing oscillation characteristic as the wave period increases,while the maximum pitch motion generally presents a decreasing trend as the wave period increases;3)In regular waves,with the increase of the period,the overall trend of the towing cable tension increases;in irregular waves,the overall trend of the towing cable tension increases with the increase of the signific-ant wave height;4)In regular waves,the shear force and bending moment in the middle section of the platform decreases with the increase of the period;in irregular waves,the shear force and bending moment in the middle section of the platform increases with the increase of the significant wave height.Through numerical research,reference data can be provided for the calculation of hydrodynamic characteristics of box platforms under towing.It can promote the development of box platform design theory.
box-type platformmotion responsecable tensionmid-section loadthree-dimensional velocity po-tential theory
万方数据
维普
