摘要
从防止油舱泄漏、保护海洋环境的角度来看 ,改进超大型油轮(VLCC)双壳舷侧结构的耐撞性能是十分必要的。本文在研究标准VLCC双壳舷侧结构碰撞性能的基础上 ,通过引入耐撞结构NOAHSII的设计思想 ,并结合轴压下薄壁圆管的动态渐进屈曲特性 ,提出了一种改进的双壳设计概念—CCT。将CCT设计概念应用于299500DWT标准VLCC ,通过仿真计算和比较研究 ,CCT被证明是一种更加先进的设计概念 ,与现有的舷侧双壳结构设计相比 ,不仅具有最大的耐撞力 ,而且具有最好的耐撞性能。对VLCC而言 。
Collision events of oil tankers are often catastrophic,so it is very important to improve crashworthiness of double hull structures of oil tankers.On the basis of research on the properties of standard double-sides structure of VLCC,a new double-sides design concept-CCT (Crushing of Circular Tubes)is promoted in this paper,with the introduction of international latest design idea on endurance of collision and with the integration of specialty about dynamic progressive buckling under axial load.Using CCT design concept on the standard 299 500DWT VLCC directly,and through the simulation calculation and comparative research,CCT has been considered as one of the most advanced design concepts.Compared with the existing double-sides design concept,it is testified that CCT has the maximal collision resistance capability and the best crashworthiness index.As far as VLCC is concerned,the design concept of CCT double-sides structure is practicable and feasible.
出处
《船舶力学》
EI
2002年第1期27-36,共10页
Journal of Ship Mechanics
