圆筒水下爆炸冲击响应

Shock Response of Cylindrical Shell to Underwater Explosion

摘要:

旨在研究声固耦合法模拟水下爆炸对圆筒的冲击，运用大型有限元软件 ABAQUS 声固耦合算法分别对密封圆筒与透水圆筒水下爆炸模型进行计算分析，并与理论公式结果进行对比分析。结果表明：利用 ABAQUS 声固耦合算法可以比较准确地模拟圆筒水下爆炸分析，能够满足工程要求；另外，在相同的水下爆炸作用下，透水圆筒比密封圆筒具有更好的抗爆炸和抗冲击性能。

Abstract:

The paper studied acoustic-structure coupling analysis to simulate the underwater explosion shock on a cylindrical shell. The underwater explosions models for permeable cylindrical shell and the sealed cylindrical shell were analyzed using the large scale finite element analysis program ABAQUS. The calculations of finite element analysis is compared with the theoretical ones. The results show that this numerical analysis method can simulate the real behaviors of a cylindrical shell underwater explosion，and meet engineering requirements. Besides， under the same underwater explosion action，the permeable cylindrical shell has better anti-explosion and shock resistance performance compared to the sealed one.