(1) Summarizes the research study about ship collision and international trends, determine the main contents of this article;

(2) Introduce the full coupling analysis method for ship collision, determine the typical collision scenarios, calculate and analyze the performance of the collision knocked the side of the hull structure, discussed in detail the process of collision damage deformation, impact force and energy absorption。 Found that plastic deformation range of collision damage mainly confined to the area of collision, side shell plate collision process of the main energy-absorbing member constructed to absorb most of the energy is converted to strain energy, to be transformed into a small part of the collision kinetic and internal energy, and other energy。

(3) By changing the ship's initial velocity impact, angle，location and other impact parameters, through a comparative analysis system discussed the impact of the law on their side of the structure of the collision knocked the side of the ship, the study found, the extent of damage to the structure along with hit broadside collision bow initial kinetic energy is increased, the angle of impact increases。 Collide in a weak position of the ribs is more dangerous than the reinforcing ribs located。

Keywords: ship collision; hull side structure; collision performance; full-coupling technology;  Numerical simulation。

目录

第一章  绪论 1

1。1 研究背景及意义 1

1。2 国内外研究现状 2

1。3 船舶碰撞的研究内容及方法 3

1。3。1 外部碰撞动力学 3

1。3。2 内部碰撞力学 4

1。4 本文主要研究内容 4

第二章  数值仿真基本理论与全耦合分析技术 6

2。1 引言 6

2。2 非线性有限元分析方法 6

2。2。1 隐式时间积分 6

2。2。1 显式时间积分 7

2。2。2 接触算法 7

2。2。3 摩擦算法 8

2。2。4 仿真中沙漏的控制 9

2。3 全耦合分析技术 10

2。3。1 流-固耦合 10

2。3。2 两相撞船之间的接触算法定义 10

2。3。3 被撞船自身结构之间接触算法定义 11

2。3。4 附连水质量法 11

2。4 本章小结 11

第三章  碰撞场景与碰撞模型 12

3。1 引言 12

3。2 目标船的选取 12

3。3 碰撞场景 12

3。4 建立船舶碰撞数值仿真模型 13

3。4。1 模型简化 13

3。4。2 建模过程中的注意事项 14

3。5 本章小结 15

第四章  数值仿真结果分析 16

4。1 引言 16

4。2 碰撞区域结构的损伤变形 16