随机晃荡载荷下基于概率破损稳性的船舶压载水置换与分舱布置耦合设计

项目名称： 随机晃荡载荷下基于概率破损稳性的船舶压载水置换与分舱布置耦合设计

项目编号： No.51309045

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 水利工程

项目作者： 陈静

作者单位： 大连海洋大学

项目金额： 24万元

中文摘要： 船舶压载水置换设计与分舱布置设计直接关系到船舶的结构、稳性等海上安全性能。两者相互耦合，相互影响。而传统的先分舱再置换的串行设计方法很难同时满足所涉及的复杂技术性能要求，且没有考虑到随机突变的晃荡载荷及概率破损稳性的影响。为实现复杂性能要求下压载水置换与分舱布置的耦合设计，本课题综合考虑包括晃荡载荷和概率破损稳性在内的多种复杂性能要求，基于置换过程中多自由液面晃荡载荷与船体相互作用机理，采用仿真与实验相结合的策略，研究复杂海况下置换过程中多自由液面晃荡载荷的分布规律与随机突变特性，研究压载水置换设计与分舱布置设计的耦合关系，建立置换与分舱设计的耦合模型，构建设计关联矩阵，根据耦合因素关联程度进行聚类分析及模型分解，研究双子系统协同进化的置换方案设计与分舱适应性布置耦合设计方法，最终依托实船设计项目进行相关理论方法的验证与完善，为我国船舶压载水置换优化设计提供一定的理论方法支撑。

中文关键词： 压载水置换；分舱布置；概率破损稳性；耦合；协同进化

英文摘要： The Sequential Ballast Water Exchange (SBWE) design and the ships' subdivision design directly concern ships' many performances and safety at sea. The two design issues have coupling factors and influence each other. The traditional subdivision first and SBWE second design method have problems in simultaneously satisfying all the complex technical performances involved in both designs. And furthermore, the influences of some key performance factors such as the stochastic multi free surface sloshing in tanks/holds and the probabilistic damaged stability, have not been considered in the traditional design methods. This project aims to study the coupling factors and develop a coupling design methodology for both the SBWE design and the subdivision design taking into consideration of all the complex safety performances including the sloshing loads, the probabilistic stability, the intact stability, the hull girder strength, and many other performances required. Based on the mutual interact mechanism of the multi free surface sloshing in tanks/holds and the movement of the ship body, both the experimental method and the numerical simulation method will be used to study the distribution and stochastic abrupt change characteristics of the sloshing loads in tanks/holds and the coupling relationship of the SBWE design a

英文关键词： ballast water exchange；subdivision；probabilistic damaged stability；coupling；cooperative coevolution