摘要
[目的]为获取自升式平台在航行状态下的截面载荷特性,以指导其结构设计,对航行状态规则波作用下的平台开展模型试验研究。[方法]通过在拖曳水池中模拟不同的波浪参数、航行工况及吃水组合,测量模型在规则波作用下关键截面的弯矩与剪力。[结果]结果表明:随着航向角增大,弯矩与剪力呈减小趋势;在航速相同与波浪周期相同的前提下,吃水深度变化对弯矩与剪力的影响较小;而吃水深度和波浪周期相同的前提下,航速对弯矩与剪力的影响较大。[结论]在进行平台航行工况结构设计与校核时,应重点关注迎浪和高速航行工况下的波浪荷载。研究结果可为自升式平台的工程设计与安全性评估提供关键的数据支持和试验依据。
[Purpose]To investigate the sectional load characteristics of a jack-up platform in its transit condition to guide its structural design,a model test study was conducted on the platform under the action of regular waves during navigation.[Method]By simulating various combinations of wave parameters,transit scenarios,and draft levels in a towing tank,the bending moments and shear forces at key sections of the model were measured under regular wave actions.[Result]The results indicate that both bending moments and shear forces tend to decrease as the heading angle increases.Under the same forward speed and wave period,the influence of draft variation on bending moments and shear forces is relatively minor.However,with the draft and wave period held constant,the forward speed has a more significant impact on the bending moments and shear forces.[Conclusion]For the structural design and verification of the platform's transit condition,special attention should be paid to the wave loads experienced in head seas and at high speeds.The findings of this study can provide crucial data support and experimental basis for the engineering design and safety assessment of jack-up platforms.
作者
林瞳
周佳
徐晨峰
王醍
钟宏鸣
LIN Tong;ZHOU Jia;XU Chenfeng;WANG Ti;ZHONG Hongming(Marine Design and Research Institute of China,Shanghai 200011,China;State Key Laboratory of Ocean Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)
出处
《船舶工程》
北大核心
2025年第S2期363-369,375,共8页
Ship Engineering
关键词
自升式平台
规则波作用
弯矩
剪力
Jack-up platform
regular wave
bending moment
shear force
