基于双渐进方法的水下爆炸气泡载荷作用下舰船的动态响应分析

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振动与冲击 ›› 2012, Vol. 31 ›› Issue (23) : 50-56.

论文

基于双渐进方法的水下爆炸气泡载荷作用下舰船的动态响应分析

张弩，宗智，张文鹏，孙雷，李章锐

作者信息 +

Investigation of the dynamic response of a ship hull stucture subjected to an underwater explosion bubble using the doubly asymptotic approximation method

ZHANG Nu, ZONG Zhi, ZHANG Wen-peng, Sun Lei, Li Zhang-rui

Author information +

文章历史 +

摘要

通过建立一套有限元方法与双渐进方法（DAA）相结合的计算程序，研究了水下爆炸气泡作用下舰船模型的动态响应。阐述了水下爆炸气泡与水面舰船结构之间的流固耦合理论分析。分别建立了一个考虑气泡迁移，自由面效应和气泡阻力的气泡模型和一个水面舰船船体模型。研究了气泡作用下船模的总体响应和局部响应。得到了不同位置的加速度，速度和位移时程曲线。详细讨论了水下爆炸气泡作用下船模总体响应和局部响应的特征与机理。

Abstract

This study develops a procedure which couples the finite element method with doubly asymptotic approximation (DAA) method to study the problem of transient responses of a full-scale surface ship model subjected to an underwater explosion bubble. The theory of interaction between a gas bubble and a ship hull structure is presented. A bubble model with the bubble migration, free surface effect and drag force taken into consideration and an surface ship hull model are established. The global and local responses of the ship model are performed. The acceleration, velocity and displacement time histories are presented. The characteristics of both the global and local responses of the ship model subjected to an underwater explosion bubble are discussed in detail.

导出引用

张弩;宗智;张文鹏;孙雷;李章锐. 基于双渐进方法的水下爆炸气泡载荷作用下舰船的动态响应分析 [J]. 振动与冲击, 2012, 31(23): 50-56

ZHANG Nu;ZONG Zhi;ZHANG Wen-peng;Sun Lei;Li Zhang-rui. Investigation of the dynamic response of a ship hull stucture subjected to an underwater explosion bubble using the doubly asymptotic approximation method[J]. Journal of Vibration and Shock, 2012, 31(23): 50-56