宽浅吃水船型冲击环境特性分析

Analysis of impact environment characteristics of wide and shallow draft ship type

冲击环境预报是对舰载设备进行抗冲击能力评估的重要手段。采用多域耦合数值仿真模拟宽浅吃水船型遭受水下爆炸,计算了全船各典型位置处的冲击响应并转化成冲击环境,从船长、船宽与型深3个主尺度方向进行全船冲击环境特性分析,得到了全船冲击环境的分布与衰减规律。研究结果可为宽浅吃水船型舰载设备抗冲击设计提供载荷输入,同时可为宽浅吃水船型抗冲击设计提供参考。

In the military confrontation with the enemy,quickly judging the damage condition of the ship is the key factor to defeat the enemy.According to the change of the natural frequency after the damage of the ship,simulate the survivability of the ship after being attacked,the database of natural frequency variation of ship under attack is constructed,and the damage location and damage degree of ship under attack can be quickly identified by using artificial intelligence neural network recognition method.This study provides a novel and effective method for damage identification of warship.