异形点阵夹芯结构底板抗爆炸冲击设计与优化研究

张昊; 段晟昱; 符瑞; 彭小洋; 雷红帅

doi:10.21656/1000-0887.450294

异形点阵夹芯结构底板抗爆炸冲击设计与优化研究

doi: 10.21656/1000-0887.450294

张昊^1,,
段晟昱^1, ,,
符瑞¹,
彭小洋²,
雷红帅¹

1.
北京理工大学先进结构技术研究院，北京 100081
2.
重庆铁马工业集团有限公司，重庆 400050

基金项目:

国家重点研发计划 2022YFB4601901

国家自然科学基金 12122202

国家自然科学基金 12302078

国家自然科学基金 U22B2083

详细信息

作者简介:
张昊(2001—)，男，硕士生(E-mail: zhanghaoofficial@bit.edu.cn)

通讯作者:
段晟昱(1995—)，男，副教授，博士生导师(通讯作者. E-mail: shengyu_duan@126.com)

中图分类号: O347
计量
- 文章访问数: 58
- HTML全文浏览量: 11
- PDF下载量: 12
- 被引次数: 0
出版历程
- 收稿日期: 2024-10-29
- 修回日期: 2024-12-05
- 刊出日期: 2025-05-01

Design and Optimization Study on Blast Resistance of Irregular Lattice Structure Base Floor

1.
Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing 100081, P.R.China
2.
Chongqing Tiema Industries Group Corporation, Chongqing 400050, P.R.China

摘要

摘要: 提出了一种新型异形点阵夹芯结构底板，并对抗爆炸冲击性能进行了表征与优化研究. 开发了点阵夹芯底板的参数化建模程序，基于有限元方法分析了点阵夹芯底板的爆炸冲击响应，建立了点阵夹芯底板几何参数与抗冲击响应之间的映射模型，实现了适应度函数的快速求解. 发展了点阵夹芯底板抗冲击响应多目标优化设计方法，实现了点阵夹芯底板的轻量化设计. 有限元分析结果表明，优化设计后的点阵夹芯底板实现了24.1%减重与41.7%的抗爆炸冲击性能提升. 该研究为装甲车底板等异形防爆装备的设计与应用提供了方法支撑和技术指导.
- 点阵结构 /
- 抗爆性能 /
- 多目标优化 /
- 数值仿真
Abstract: A new type of irregular lattice structure base floor was proposed, and its blast resistance was characterized and optimized. The parametric modeling program for the lattice structure base floor was developed, the blast responses of the base floor were analyzed based on the finite element method, the surrogate model between the lattice structure geometrical parameters and the blast resistance responses was established, and the rapid solution of the fitness function was realized. A multi-objective optimization design method for the blast responses of the lattice structure base floor was developed, and the lightweight design of the lattice structure was achieved. The finite element analysis results show that, the optimized design of the lattice structure base floor achieves a 24.1% weight reduction and a 41.7% blast resistance improvement at the same time. This study provides methodological support and technical guidance for the design and application of irregular blast-resistance equipment such as armored vehicle base floors.
- lattice structure /
- blast resistance /
- multi-objective optimization /
- numerical simulation

HTML全文

图 1 异形点阵夹芯底板示意图

Figure 1. Schematic diagram of the irregular lattice floor

下载: 全尺寸图片幻灯片

图 2 异形点阵夹芯底板参数化建模流程

Figure 2. The irregular lattice floor parametric modeling process

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图 3 不同炸高下实验^[22]与仿真结果对比

注为了解释图中的颜色，读者可以参考本文的电子网页版本，后同.

Figure 3. Comparison of experimental^[22] and simulation results at different stand-off distances

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图 4 异形点阵夹芯结构底板示意图及几何参数

Figure 4. Comparison of experimental and simulation results at different stand-off distances

下载: 全尺寸图片幻灯片

图 5 基于代理模型的参数优化流程

Figure 5. The parameter optimization process based on the surrogate model

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图 6 3种构型变形模式

Figure 6. Deformation modes in 3 configurations

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表 1 AL-6XN不锈钢J-C本构模型参数

Table 1. AL-6XN ss J-C model parameters

A/MPa	B/MPa	n	C	ε·₀	m
410	2 000	1	0.154	4 916	0.154

下载: 导出CSV

表 2 设计变量优化结果

Table 2. Optimization results of design variables

design variable	initial variable/mm	variable range/mm	optimization variable/mm
M₁	4	[2, 8]	6
M₂	4	[2, 8]	2
N	6	[2, 8]	6
T_f	3.30	[2.0, 10.0]	3.49
T_b	6.10	[2.0, 10.0]	2.40
T_r	6.30	[2.0, 10.0]	6.80
H	70.0	[30.0, 150.0]	113.33
R	6.3	[2.0, 9.0]	2.87

下载: 导出CSV

表 3 目标函数优化结果

Table 3. Optimization results of objective function

configuration	mass/t	mass reduction ratio	disp/mm	disp. reduction ratio
armored floor	0.076 8	-	74.9	-
origin lattice floor	0.073 1	4.8%	52.5	30.0%
optimal lattice floor	0.058 3	24.1%	43.7	41.7%

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