上海交通大学学报 ›› 2022, Vol. 56 ›› Issue (9): 1168-1175.doi: 10.16183/j.cnki.jsjtu.2021.182
收稿日期:
2021-05-26
出版日期:
2022-09-28
发布日期:
2022-10-09
通讯作者:
孙珊珊
E-mail:sunss@dlut.edu.cn
作者简介:
王延林(1981-),男,辽宁省大连市人,副教授,从事海洋工程问题研究.
基金资助:
WANG Yanlin1, GUO Qi1, SUN Shanshan2(), WEI Sihao1, XU Ning3
Received:
2021-05-26
Online:
2022-09-28
Published:
2022-10-09
Contact:
SUN Shanshan
E-mail:sunss@dlut.edu.cn
摘要:
斜面结构是冰区海洋结构的重要形式之一.斜面倾角变化会改变海冰的主要破坏模式,使结构所受冰荷载的峰值有较大变化.为了更好地模拟平整冰破碎的随机性特点,构建了具有黏结-破碎功能的非规则分布的扩展圆盘单元海冰模型,并基于该模型模拟了平整冰与斜面结构作用的动力过程.通过将数值模拟所得冰力峰值与实测冰力峰值进行比较,对该模型进行了验证,分析了斜面倾角对冰荷载及海冰破坏模式的影响规律.结果发现:数值模拟的冰荷载随结构倾角的变化趋势与二维理论模型计算的变化趋势基本一致,斜面倾角的增加会导致弯曲破坏所占比例减小,并造成冰荷载峰值及发生概率都呈增大趋势,斜面倾角是影响海冰破坏模式变化以及冰荷载大小的重要因素.该研究工作可以为海冰的离散元数值模拟及斜面海洋工程结构的抗冰设计提供借鉴和参考.
中图分类号:
王延林, 郭麒, 孙珊珊, 魏思浩, 许宁. 冰与斜面结构作用过程的离散元模拟与分析[J]. 上海交通大学学报, 2022, 56(9): 1168-1175.
WANG Yanlin, GUO Qi, SUN Shanshan, WEI Sihao, XU Ning. Discrete Element Simulation and Analysis of Ice-Inclined Structure Interaction[J]. Journal of Shanghai Jiao Tong University, 2022, 56(9): 1168-1175.
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