箱式保障平台在海上物资运输方面具有重要应用前景。本文提出一种多模块拼组箱式平台设计方案，采用Ansys软件中的AQWA水动力模块，基于三维势流理论与时域分析方法，对拖航船拖曳下的箱式平台的水动力性能进行数值模拟。研究结果表明：1）箱式平台左右两模块运动协调，基本保持一致；2）在规则波工况中，平台垂荡运动最大值随波浪周期递增表现往复振荡的特点，纵摇运动最大值随波浪周期递增整体呈递减趋势；3）在规则波工况中，随着周期的增大，拖曳缆绳张力整体呈现增大趋势；不规则波工况中，拖曳缆绳张力随着海况等级的增加整体呈现增大的趋势；4）在规则波工况中，单位波幅下，随着周期的增大，中剖面剪力和弯矩整体呈现下降的趋势；不规则波工况中，中剖面剪力和弯矩随着海况等级的增加呈现递增的趋势。通过数值研究，可为实际作业中拖航作用下箱式平台的水动力特性计算提供基准数据，推动箱式平台设计理论的发展。
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 numerically 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 reciprocating 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 significant 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.
2024,46(19): 18-24 收稿日期：2023-11-10
DOI：10.3404/j.issn.1672-7649.2024.19.004
分类号：U661.1
基金项目：中图博士后科学基金资助项目（2018M643852）
作者简介：赵建成(1998-),男,硕士研究生,研究方向为船舶与海洋工程水动力
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