LNG船舷侧碰撞损伤场景下的极限强度研究

Ultimate Strength Study of LNG Carrier in Side Collision Damage Scenarios

利用有限元数值仿真技术和ABAQUS软件,建立LNG船液舱围护系统以及舱段的有限元模型,模拟LNG船舷侧受撞击场景。在碰撞损伤基础上,对含有液舱围护系统的LNG船舱段开展极限强度研究,获取LNG船舱段结构的极限承载能力。研究发现,在船体达到极限强度状态之前,液舱围护系统不会失效。

By using numerical simulation methodology and ABAQUS software, the cargo containment system and the LNG carrier structure model are established, The collisions scenarios between striking ship and LNG side structure are simulated. Based on the simulation results and the collision damage, the ultimate strength of the LNG carrier containing the cargo containment system is investigated, on purpose of obtaining the ultimate strength of the LNG carrier. It is concluded that the containment system will not fail before the hull reaches its ultimate strength state.