波浪驱动下系泊箱式浮体运动响应及系泊力的影响因素分析  

Numerical study on the motion responses and mooring forces of moored floating boxes under waves

作　　者：陈善群[1] 汪冰 田菁艾 廖斌[1] CHEN Shan-qun;WANG Bin;TIAN Jing-ai;LIAO Bin(Key Laboratory for Mechanics,Anhui Polytechnic University,Wuhu 241000,China)

机构地区：[1]安徽工程大学力学重点实验室,安徽芜湖241000

出　　处：《船舶力学》2023年第5期669-682,共14页Journal of Ship Mechanics

基　　金：安徽省自然科学基金项目(2008085QA22);安徽工程大学国家自然科学基金预研基金项目(Xjky2020167);安徽省高校优秀青年骨干教师国内访问研修项目(gxgnfx2022013)。

摘　　要：针对系泊浮体缆索系泊力求解精度稍显不足的现状,建立一个由光滑粒子流体动力学(SPH)方法耦合MoorDyn动态系泊缆索模型求解系泊浮体运动响应及系泊力的数值模型。通过与实验数据的对比,验证了所建立的耦合求解数值模型对于研究系泊箱式浮体的运动响应及系泊力问题具有较好的适用性和较高的精度。在此基础上,系统探讨科勒根-卡彭特数(KC数)、波陡δ等波浪参数对单个系泊箱式浮体运动响应及系泊力的影响规律。再以单个系泊箱式工况作为参照,详细探讨浮体之间间距d’对于上游及下游系泊箱式浮体的运动响应及系泊力的影响规律。In order to improve the accuracy of mooring force solution of moored floating bodies,a numerical model was developed in this paper for solving the motion responses and mooring forces of moored floating bodies.The numerical model was modelled by coupling the smoothed particle hydrodynamics(SPH) method with MoorDyn,a lumped-mass mooring dynamics model.By comparing with the experimental data,it was verified that the developed coupling numerical model has a good applicability and a high accuracy for studying the motion responses and mooring forces of the moored floating box.On this basis,the effects of wave parameters such as Keulegan-Carpenter(KC) number and wave steepness(δ) on the motion responses and mooring forces of a single mooring floating box were systematically discussed.Moreover,taking the case of a single moored floating box as a reference,the influence of the spacing between floating bodies(d') on the motion responses and mooring forces of the upstream and downstream moored floating boxes were also systematically discussed.

关 键 词：系泊箱式浮体 SPH方法 MoorDyn数值模型 运动响应 系泊力 

分 类 号：TV139.26[水利工程—水力学及河流动力学]