爆炸载荷作用下预制孔板架结构响应特性仿真研究

龚小康; 王兴; 陈军; 姜文健; 刘洁

doi:10.7643/ issn.1672-9242.2025.12.002

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装备环境工程 ›› 2025, Vol. 22 ›› Issue (12) : 8-15. DOI: 10.7643/ issn.1672-9242.2025.12.002

武器装备

爆炸载荷作用下预制孔板架结构响应特性仿真研究

龚小康, 王兴, 陈军, 姜文健, 刘洁

作者信息 +

Simulation on Response Characteristics of Prefabricated Orifice Frame Structures under Blast Loads

GONG Xiaokang, WANG Xing, CHEN Jun, JIANG Wenjian, LIU Jie

Author information +

文章历史 +

摘要

目的研究有孔洞缺陷的板架结构在爆炸载荷作用下的毁伤特性,为舰船等装备结构设计提供参考。方法以某典型板架结构作为研究对象,开展爆炸载荷作用下预制孔板架结构动态响应数值仿真研究,分析战斗部长径比、炸药当量、比例距离对预制孔板架结构毁伤模式、残余孔洞直径的影响规律。结果相同炸药当量和正侵彻爆距的情况下,圆柱形装药长径比在1︰4~4︰1时,炸药长度越小,造成预制孔板架结构的毁伤程度越大。预制孔板架结构在爆炸载荷作用下的毁伤模式可划分为3个级别,长径比分别为1︰1和3︰1时,造成预制孔板架结构毁伤模式Ⅰ（仅底板向后隆起）和毁伤模式Ⅱ（底板撕裂成花瓣状）的临界比例距离分别为0.44、0.2,造成预制孔板架结构毁伤模式Ⅱ和毁伤模式Ⅲ（底板沿骨材边界撕裂）的临界比例距离分别为0.33、0.17。结论该研究结果为舰船等装备结构设计提供了参考依据。

Abstract

The work aims to study the damage characteristics of plate frame structures with preexisting hole defects under blast loads, to provide references for the structural design of equipment such as ships. With a typical plate frame structure as the research object, a numerical simulation was carried out to the dynamic response of the prefabricated orifice frame structure under blast loads. The effects of the length-to-diameter ratio of the warhead, the explosive equivalent, and the proportional distance on the damage mode and the residual hole diameter of the prefabricated orifice frame structure were analyzed. Under the same explosive equivalent and the same positive penetration blast distance, when the length-to-diameter ratio of the cylindrical charge was within the range of 1:4 to 4:1, the smaller the length of the explosive, the greater the damage degree to the prefabricated orifice frame structure. The damage modes of the prefabricated orifice frame structure under blast loads were divided into three levels. When the length-to-diameter ratios were 1:1 and 3:1, the critical proportional distances for causing damage mode I (only the bottom plate bulges backward) and damage mode II (the bottom plate tears into petal shapes) of the prefabricated orifice frame structure were 0.44 and 0.2, respectively. The critical proportional distances for causing damage mode II and damage mode III (the bottom plate tears along the bone material boundary) were 0.33 and 0.17, respectively. These study findings provide references for the structural design of equipment such as ships.

导出引用

龚小康, 王兴, 陈军, 姜文健, 刘洁. 爆炸载荷作用下预制孔板架结构响应特性仿真研究[J]. 装备环境工程. 2025, 22(12): 8-15 https://doi.org/10.7643/ issn.1672-9242.2025.12.002

GONG Xiaokang, WANG Xing, CHEN Jun, JIANG Wenjian, LIU Jie. Simulation on Response Characteristics of Prefabricated Orifice Frame Structures under Blast Loads[J]. Equipment Environmental Engineering. 2025, 22(12): 8-15 https://doi.org/10.7643/ issn.1672-9242.2025.12.002

中图分类号： O383.3

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