风浪联合作用下深水半潜平台耐波性能的数值模拟  

Numerical simulation of seakeeping performance of deep water semi-submersibleplatforms under the combined action of wind and wave

作　　者：莫文渊[1] 邱立国 MO Wen-yuan;QIU Li-guo(School of Marine Science and Engineering,Hainan University,Haikou 570228,China;Hainan Academy of Ocean and Fisheries Sciences,Haikou 571126,China)

机构地区：[1]海南大学海洋科学与工程学院,海南海口570228 [2]海南省海洋与渔业科学院,海南海口571126

出　　处：《舰船科学技术》2024年第2期101-105,共5页Ship Science and Technology

摘　　要：通过数值模拟方法,研究风浪联合作用下深水半潜平台的耐波性能。该方法通过建立风速与波浪相干函数模型,利用该模型获得当前深水半潜平台不同工况下风速与海浪的关系,再计算风浪联合作用下深水半潜平台的海浪作用力和风作用力,以2个数值为基础,构建深水半潜平台耐波性能数值模拟模型,在不同情况下模拟风浪联合作用下深水半潜平台耐波性能。实验结果表明:该方法可在不同波浪周期时,模拟风浪联合作用下深水半潜平台的横荡和垂荡数值,在波浪周期较小时,垂荡与横荡数值也较小,深水半潜平台的耐波能力较强;风浪角越大,在波浪周期相同时深水半潜平台的垂向弯矩数值越大,其耐波能力则较小。This article investigates the seakeeping performance of a deep water semi-submersible platform under the combined action of wind and waves through numerical simulation methods.This method establishes a wind speed and wave coherence function model,and uses this model to obtain the relationship between wind speed and waves under different operating conditions of the current deep-water semi-submersible platform.Then,the wave and wind forces of the deep-water semi-submersible platform under the combined action of wind and waves are calculated.Based on these two values,a numerical simulation model for the seakeeping performance of the deep-water semi-submersible platform is constructed,and the seakeeping performance of the deep-water semi-submersible platform under the combined action of wind and waves is simulated under different conditions.The experimental results show that this method can simulate the sway and heave values of deep water semi-submersible platforms under the combined action of wind and waves at different wave periods.When the wave period is small,the sway and heave values are also small,and the seakeeping ability of deep water semi-submersible platforms is strong;The larger the wind wave angle,the greater the vertical bending moment value of the deep water semisubmersible platform at the same wave period,and the smaller its wave resistance.

关 键 词：深水半潜平台 风浪联合作用 耐波性能 风速 波浪周期 数值模拟 

分 类 号：P75[天文地球—海洋科学]