Effect of Shock Wave Load in Underwater Explosion of Cased Charge near Seabed

Gangwei LIU; Jingyuan ZHANG; Zhangsong SHI; Bo TAN; Pu SONG; Hongwei HU; Yongjin LU

doi:10.12382/bgxb.2024.0643

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Effect of Shock Wave Load in Underwater Explosion of Cased Charge near Seabed

更新时间：2025-09-25

- Effect of Shock Wave Load in Underwater Explosion of Cased Charge near Seabed
- Acta Armamentarii Vol. 46, Issue 8, Pages: 240643(2025)
- 作者机构：
  
  1. 海军工程大学, 湖北武汉 430033
  2. 西安近代化学研究所, 陕西西安 710065
  3. 大连理工大学船舶工程学院, 辽宁大连 116024
- 作者简介：
- 基金信息：
- DOI：10.12382/bgxb.2024.0643
  CLC：
- Received：29 July 2024，
  
  Published Online：28 August 2025，
  
  Published：31 August 2025
- 稿件说明：
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Gangwei LIU, Jingyuan ZHANG, Zhangsong SHI, et al. Effect of Shock Wave Load in Underwater Explosion of Cased Charge near Seabed[J]. Acta Armamentarii, 2025, 46(8): 240643.
DOI：

Gangwei LIU, Jingyuan ZHANG, Zhangsong SHI, et al. Effect of Shock Wave Load in Underwater Explosion of Cased Charge near Seabed[J]. Acta Armamentarii, 2025, 46(8): 240643. DOI： 10.12382/bgxb.2024.0643.

摘要

沉底雷是一种布设在水底、常采用原地爆炸方式毁伤水面舰船和潜艇等水中目标的水雷。壳体是影响装药水下爆炸冲击波载荷的关键因素。采用耦合欧拉-拉格朗日方法建立近海底带壳装药数值模型

开展带壳装药水下爆炸冲击波载荷特性研究

揭示装药形状、起爆方式、壳体设置、外壳厚度比、壳药质量比等因素对沉底装药水下爆炸冲击波载荷特性的影响规律

提出一种适用于近海底条件下的新型变壁厚装药壳体

该设计在近海底条件下对冲击波载荷具有显著的增强效应。研究结果表明:壳体的约束特性会导致沉底装药水下爆炸冲击波随距离衰减放缓;变壁厚壳体对装药水下爆炸冲击波载荷具有增强效应

800mm处冲击波峰值压力随

的增大增长最多

增长率可达9.74%;所得研究成果可为水下兵器设计提供参考。

Abstract

Bottom mines are typically deployed on the seabed and are designed to damage the surface ships and submarines during underwater explosion.The casing of bottom mine is the key factor influencing the energy output structure of charge underwater explosion (UNDEX).Based on the theory of UNDEX

the coupled Euler-Lagrange (CEL) method is used to establish a numerical model of the UNDEX of cased charge near the seabed.The characteristics of shock wave loads generated by the underwater explosion of cased charge are studied and the effects of various factors

such as charge shape

detonation mode

casing configuration

casing thickness ratio

and casing-to-charge mass ratio

on the characteristics of shock wave loads generated by underwater detonat

ion of charges are analyzed.Furthermore

a casing with a variable wall thickness suitable for near seabed conditions is proposed

which significantly enhances the shock wave load.The results show that the constraint characteristics of the casing can cause the slower attenuation in the shock wave due to the underwater explosion of charge with distance.The casing with variable wall thickness has an enhancing effect on the shock wave load due to the underwater explosion of charges.The peak pressure of shock wave at 800 mm significantly increases with the increase of

and the growth rate can reach 9.74%.It can provide reference for the design of underwater weapons.

关键词

Keywords

references

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