华中科技大学学报（自然科学版）2024，Vol.52Issue(10)：98-102,5.DOI:10.13245/j.hust.240454
浮筒式拦截系统被船撞的动态响应分析
Dynamic response analysis of pontoon interception system under ship collision
摘要
Abstract
According to the basic situation of the bridge and the requirement of anti-ship collision level,a pontoon interception system consisting of floats,anchor chains,anchor anchors and cables was designed.A finite element model of the pontoon interception system and the ship was established,and the dynamic process of the ship hitting the interception system was simulated.A fluid-structure coupling method was used to consider the role of the flow field in the collision process,and the effects of different ship masses,velocities,impact points,and the number of anchorages on the interception effect were analyzed.Result shows that the designed interception system can effectively stop the ship for different tonnage and collision speeds to protect the bridge.When the tonnage of the ship increases from 5 kt to double the kinetic energy of 10 kt,the change of the maximum tension of the interceptor net and the anchor chain is less than 30%,which indicates that the interceptor system has a greater applicability.Interception time,vessel and anchor displacement are all much smaller with a double-anchored interception system,and the interception effect is better,while the anchor chain and the interception net axial force increase is not big.关键词
船舶/桥梁/浮筒/碰撞/有限元/流固耦合Key words
ship/bridges/pontoon/collision/finite element/fluid structure coupling分类
交通工程引用本文复制引用
杨祖涛,陈宇恒,潘晋,许明财..浮筒式拦截系统被船撞的动态响应分析[J].华中科技大学学报（自然科学版）,2024,52(10):98-102,5.基金项目
国家自然科学基金面上基金资助项目(52371319). （52371319）
