﻿ 半潜支持平台与钻井生产平台间碰撞响应分析
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 应用科技  2019, Vol. 46 Issue (5): 10-14, 27  DOI: 10.11991/yykj.201905006 0

### 引用本文

LIN Meng, LI Guangming, ZHU Shaowen, et al. Research on collision response between semi-submersible support platform and drilling platform[J]. Applied Science and Technology, 2019, 46(5): 10-14, 27. DOI: 10.11991/yykj.201905006.

### 文章历史

1. 哈尔滨工程大学 船舶工程学院，黑龙江 哈尔滨 150001;
2. 武汉第二船舶设计研究所，湖北 武汉市 430000

Research on collision response between semi-submersible support platform and drilling platform
LIN Meng 1 , LI Guangming 2 , ZHU Shaowen 1 , HAO Ning 1 , GUO Jun 1
1. College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China;
Abstract: The collision between large marine structures is a kind of serious marine accidents. At present, the research on collision between a ship and offshore platform is common. However, studies on the collision between ocean platforms are rare. In order to solve this problem, a three-dimensional finite element model of offshore platform was established using the nonlinear finite element method, and the collision process between the supporting platform (SP) and the drilling platform (DP) under different collision velocities and collision angles was simulated by LS-DYNA. The results show that the collision force, structural damage and energy transformation of the structures obtained under different working conditions are different. The research can be used to evaluate the structure damage of semi-submersible platform in collision.
Keywords: support platform    drilling platform    LS-DYNA    numerical simulation    collision response    energy conversion    structural damage    energy conversion

1 支持平台与钻井平台的有限元模型

1.1 支持平台和钻井平台主要参数

1.2 支持平台和钻井平台的碰撞工况

1.3 数值模拟主要参数设置

2 平台碰撞仿真结果分析 2.1 碰撞力对比分析

SP−DP1～SP−DP6这6种工况包含0.6和3 m/s 2种初始碰撞速度，3种平台撞击角度。图5为SP−DP1至SP−DP6的撞击力时历曲线，其中（a）、（b）、（c）为碰撞速度为3 m/s时碰撞力时历曲线，（d）、（e）、（f）为碰撞速度为0.6 m/s时碰撞力时历曲线。

2.2 结构损伤对比分析

SP−DP3的两平台结构应力及变形情况如图6（e）（f）所示，SP−DP3钻井平台和支持平台的结构变形和失效形式与SP−DP2类似，区别在于SP−DP3碰撞区域较小，应力更集中。

2.3 能量转化对比分析