摘要
对将撞击船艏简化成刚性会影响计算结果问题，利用非线性有限元动态分析软件MSC.Dytran对一艘散货船垂直撞击双壳油轮场景进行计算。比较实际柔性船艏与简化刚性船艏撞击下碰撞性能区别，重点讨论撞击船艏部刚度对被撞舷侧碰撞性能影响。所得船艏刚度对舷侧碰撞性能影响规律表明，改进撞击船艏部结构可有效提高船舶碰撞安全性。
Abstract
The problem about Ship collision is the hot point of the ship mechanics, and the striking bow which simplified as rigid will have a certain impact on the results. By using MSC.Dytran, a nonlinear finite element code for dynamic response analysis, analysis was performed for the collision scenario of a 159,000DWT oil tanker struck by a 176,000DWT buck carrier. First, the difference of collision capabilities between real soft striking bow and simplified rigid striking bow was compared, and then focus on the influence of striking bow stiffness to the collision capabilities of struck structures. The influence of striking bow stiffness to the collision capabilities is find out, show that the improved striking bow structure can effectively improve the safety of ship collision.
关键词
船舶碰撞 /
碰撞性能 /
数值仿真 /
艏部刚度 /
压溃强度
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Key words
ship collision /
collision capability /
numerical simulation /
striking bow stiffness /
crushing performance
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胡宗文;刘 昆;王自力.
撞击船艏刚度对船体结构碰撞性能影响[J]. 振动与冲击, 2014, 33(14): 149-154
HU Zongwen;LIU Kun;WANG Zi-li.
Effect of striking bow stiffness on the behavior of ship structure in collision[J]. Journal of Vibration and Shock, 2014, 33(14): 149-154
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