深海典型非金属耐压球壳双球内爆流固耦合特性比较分析  

Comparative Analysis of Fluid-Structure Interaction Characteristics of Typical Non-metallic Pressure-resistant Spheres in Deep Sea with Double-sphere Implosion

作　　者：张馨予 赵敏[1] Zhang Xinyu;Zhao Min(State Key Laboratory of Ocean Engineering,School of Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学船舶海洋与建筑工程学院海洋工程国家重点实验室,上海200240

出　　处：《水动力学研究与进展(A辑)》2024年第6期902-907,共6页Chinese Journal of Hydrodynamics

基　　金：国家重点研发计划(2021YFC28026004&2021YFC28026000);国家自然科学基金(U2067220)。

摘　　要：非金属耐压球壳在深海工程领域有着广泛的应用前景,但其有面临内爆的风险。当内爆冲击波的强度超过周围结构的强度极限时,则会造成灾难性的殉爆。为了更好地描述内爆的流固耦合特性,该文以陶瓷、碳纤维增强聚合物(CFRP)等典型非金属材质耐压球壳为研究对象,基于开源求解器OpenRadioss,采用任意拉格朗日-欧拉方法,对双球内爆过程进行模拟分析。通过计算已得到验证的算例并对比结果,验证了所使用数值方法的可行性。在此基础上,结合深海工程的实际要求,分别探讨了两种非金属耐压球壳的内爆流固耦合特性,并比较了二者差异,进而为非金属材料在深海耐压结构上的实际应用及设计方案提供参考。Non-metallic pressure-resistant spheres have broad application prospects in deep-sea engineering but face the risk of implosion.When the intensity of an implosion shock wave exceeds the strength limit of the surrounding structure,it can cause catastrophic chain-reaction implosions.In order to better describe the fluid-structure interaction characteristics of implosion,typical non-metallic pressure-resistant spheres such as ceramics and carbon fiber-reinforced polymers(CFRP)are taken as research objects in this paper.Based on the open-source solver OpenRadioss,an arbitrary Lagrangian-Euler method is used to simulate and analyze the double-sphere implosion process.The feasibility of the numerical method used is determined by calculating validated examples and comparing the results.On this basis,combined with the requirements of deep-sea engineering,the implosion fluid-structure interaction characteristics of two types of non-metallic pressure-resistant spheres are explored,and the differences between the two are compared,providing a reference for the practical application and design schemes of non-metallic materials in deep-sea pressure resistant structures.

关 键 词：流固耦合 双球内爆 非金属材料 耐压结构 数值模拟 

分 类 号：U661[交通运输工程—船舶及航道工程]