海洋平台在服役期间,常会遭到油气泄漏而引起的爆炸冲击破坏.夹层板结构是近代发展起来的一种比较先进的结构形式,具有比强度高、比刚度大等特点.以某海洋平台燃油舱围壁为研究对象,设计了三种夹层板结构,分别为U型夹层板、V型夹层板和蜂窝型夹层板.基于此,使用MSC.Dytran对不同舱壁结构在爆炸载荷下的动态响应进行数值仿真计算,并与传统平板的计算结果进行比较分析,从而获得防爆效果较好的夹层板防爆舱壁结构.为模拟海洋平台燃油舱油气泄漏导致爆炸产生的爆炸冲击波对平台多舱室结构的破坏作用,采用了能够考虑耦合面破裂的多欧拉域的流固耦合算法. Offshore platform during service, often by the oil and gas leaks caused by the impact of the explosion shock.Mezzanine board structure is developed in recent years, a more advanced structural form, with high strength, stiffness and other characteristics of a marine platform to fuel Three kinds of sandwich panels were designed, which are U-shaped sandwich panels, V-shaped sandwich panels and honeycomb sandwich panels, respectively.According to this, using MSC.Dytran, the dynamics of different bulkhead structures under blast load Response to the numerical simulation and comparative analysis with traditional slab calculation results to obtain a better explosion-proof sandwich panel explosion-proof bulkhead structure.In order to simulate the offshore platform oil and gas leak caused by explosion blast shock waves on the platform multi-chamber structure The fluid-structure interaction algorithm of the Doral domain, which can consider the fracture of the coupling surface, is adopted.