浅水中波浪载荷对半潜平台拖航运动响应和拖揽张力影响  

Influence of wave load on the dynamic response and towing tension of semi-submersible platform in shallow waters

作　　者：张涛 白旭[1] 昝英飞 ZHANG Tao;BAI Xu;ZAN Yingfei(School of Naval Architecture and Ocean Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,China;College of Shipbuilding Engineering,Harbin Engineering University,Harbin 150001,China)

机构地区：[1]江苏科技大学船舶与海洋工程学院,镇江212003 [2]哈尔滨工程大学船舶工程学院,哈尔滨150001

出　　处：《科技导报》2025年第2期97-107,共11页Science & Technology Review

基　　金：教育部产学合作协同育人项目(220805055253544);江苏省研究生科研与实践创新计划项目(SJCX22-1959)。

摘　　要：针对浅水航道水域较浅且环境条件复杂恶劣的现象,以浮筒宽高比过大的新型半潜平台为研究对象,基于时域分析理论和浅水波浪理论,通过数值模型对比分析不同有义波高、谱峰周期、浪向角、拖航速度和拖揽长度对浅水海域半潜平台拖航运动响应和拖揽张力的影响。结果表明:波浪高度越高,平台垂荡、缆绳张力越大;谱峰周期越长,纵摇、缆绳张力越小;浪向角对横纵摇影响较大,极值呈凹凸型分布;不同工况下的新型半潜平台横纵摇均≤5°,满足拖航规范要求;缆绳张力受航速和波高的影响较大,当波高达到5 m,拖揽张力超过安全范围,可以通过降低拖航速度、缩短缆绳长度等措施规避风险。Aiming at the complex and harsh environmental conditions of shallow waters around of Taiwan Strait,in this paper,new semi-submersible platform with a large aspect ratio of the buoy is taken as the research object.Based on the time domain analysis theory and the shallow water wave theory,the numerical model is used to compare and analyze the influence of different significant wave heights,spectral peak periods,wave direction angles,towing speed and towing length on the towing dynamic response and towing tension of the semi-submersible platform in shallow waters.The results show that the higher of the wave height,the greater of the platform heave and the cable tension;the longer of the spectral peak period,the smaller of the pitch and cable tension;the wave direction angle has a significant influence on the roll and pitch,and the extreme value presents concave-convex distribution.The roll and pitch of the new semi-submersible platform under different working conditions are≤5°,which meets the requirements of the towing specification.The cable tension is greatly affected by the speed and wave height.When the wave height reaches 5 m,the towing tension exceeds the safe range,and the risk can be avoided by reducing towing speed and cable length.

关 键 词：浅水海域 波浪载荷 半潜平台 运动响应 拖揽张力 

分 类 号：U674.941[交通运输工程—船舶及航道工程]