基于非线性动力学的自升式平台/船舶碰撞结构损伤分析

林一;胡安康;熊飞

振动与冲击 ›› 2012, Vol. 31 ›› Issue (22) : 132-137.

PDF(2105 KB)
PDF(2105 KB)
振动与冲击 ›› 2012, Vol. 31 ›› Issue (22) : 132-137.
论文

基于非线性动力学的自升式平台/船舶碰撞结构损伤分析

  • 林一1,胡安康1,熊飞2
作者信息 +

Structure Damage Analysis of Collision between Jack-up and ShipBased on Non-linear Dynamic Method

  • LIN Yi1, HUAn-kang1, XIONG Fei2
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文章历史 +

摘要

海洋平台遭遇船舶碰撞时会危及其整体安全性,但更多的是造成严重的局部损伤,需要进行修理,导致其工作的停滞和经济的损失。相较于固定式平台而言,自升式平台柔性更大,但结构冗余度更低,其碰撞危害性往往未受到重视,国内也少见相关研究。本文基于非线性动力学分析方法,以某300ft工作水深的自升式平台为例,提出了一种考虑初始状态和剩余强度的自升式平台/船舶碰撞的结构分析方法。在此基础上进一步考察各种撞击参数对平台结构损伤和动力响应的影响,所得结论可为自升式平台抵抗意外载荷进行结构设计提供参考。

Abstract

he integer safety of offshore installations would be endangered when collision between the installations and vessels happens. Even if serious local damage caused by the collision only, repairing would lead to work break and economical losses. Comparing with jackets, jack-ups are much more flexible and have a much lower degree of redundancy, but its collision danger has not been paid sufficient attention.. So there is few research on this subject in our country Based on non-liner dynamic analysis methods, taking a 300ft jack-up as an example, one approach of analyzing collision process between jack-up and vessel considering the initial state of the jack-up and residual strength is put forwarded. Furthermore, the influence of impact parameters on structure damage and dynamic response is considered. The conclusion may be helpful to structure design against accidental loads for jack-ups.

关键词

自升式平台 / 碰撞损伤 / 撞击参数 / 结构分析

Key words

jack-up / collision damage / impact parameters / structural analysis

引用本文

导出引用
林一;胡安康;熊飞. 基于非线性动力学的自升式平台/船舶碰撞结构损伤分析[J]. 振动与冲击, 2012, 31(22): 132-137
LIN Yi;HUAn-kang;XIONG Fei. Structure Damage Analysis of Collision between Jack-up and ShipBased on Non-linear Dynamic Method[J]. Journal of Vibration and Shock, 2012, 31(22): 132-137

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