船舶碰撞和搁浅后剩余强度可靠性评估  

The Reliability Assessment of Ship Residual Strength after Collision and Grounding

作　　者：祁恩荣[1] 崔维成[2] 彭兴宁[1] 徐向东[1] 

机构地区：[1]中国船舶科学研究中心,无锡214082 [2]上海交通大学船舶与海洋工程学院,上海200030

出　　处：《船舶力学》1999年第5期40-46,共7页Journal of Ship Mechanics

摘　　要：在船舶发生碰撞和搁浅后，一方而是船体结构承载能力的削弱；另一方面是船舶浮态和外载荷分布的的著变化。基于这样的事实，本文给出了破损船体外载荷和非对称弯曲极限强度分析方法，比较了基于横剖面模数和基于极限强度的剩余强度衡准，并给出了破损船体结构安全性评估的可靠性方法。根据本文提出的方法，对65000t散货船在完整状态以及碰撞和搁浅后的船体结构安全性进行了评估，并得到了一些有意义的结论。After collision and grounding, the load - bearing capacity of a ship hull is weakened while the floating condition and the external load distribution of the ship may change dramatically.Based on this fact, this paper proposes two methods to analyze the external loads and the ultimate unsymmetrical bending strength of a damaged ship hull.Two types of residual strength criteria, i. e. tile section modulus based one and the ultimate bending strength based another, are compared and a rational reliability method to assess the safety of the damaged ship hullis also given. Finally, a numerical example of a 65000t bulk camer is presented and some useful conclusions have been drawn.

关 键 词：极限强度 可靠性 船舶 碰撞 搁浅 

分 类 号：U661.43[交通运输工程—船舶及航道工程]