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[1]卫禹辰,袁梦琦,钱新明,等.爆炸冲击环境下内凹蜂窝型梯度结构响应特性研究*[J].中国安全生产科学技术,2021,17(1):5-11.[doi:10.11731/j.issn.1673-193x.2021.01.001]
　WEI Yuchen,YUAN Mengqi,QIAN Xinming,et al.Research on response characteristics of concave honeycomb gradient structure under explosive impact environment[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2021,17(1):5-11.[doi:10.11731/j.issn.1673-193x.2021.01.001]
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爆炸冲击环境下内凹蜂窝型梯度结构响应特性研究*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
17
期数:
2021年1期
页码:
5-11
栏目:
特邀专栏
出版日期:
2021-01-31

文章信息/Info

Title:
Research on response characteristics of concave honeycomb gradient structure under explosive impact environment
文章编号:
1673-193X(2021)-01-0005-07
作者:
卫禹辰; 袁梦琦; 钱新明; 郭亚鑫; 梁一鸣
（1.北京理工大学 爆炸科学与技术国家重点实验室，北京 100081;
2.深圳清华大学研究院 公共安全研发中心，广东 深圳 518000）
Author(s):
WEI Yuchen;  YUAN Mengqi;  QIAN Xinming ;  GUO Yaxin;  LIANG Yiming
(1.State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,China;
2.Research and Development Center of Public Safety,Research Institute of Tsinghua University in Shenzhen,Shenzhen Guangdong 518000,China)
关键词:
爆炸冲击波; 梯度结构; 力学响应; 冲击波衰减效应
Keywords:
explosive shock wave;  gradient structure;  mechanical response;  attenuation effect of shock wave
分类号:
X932
DOI:
10.11731/j.issn.1673-193x.2021.01.001
文献标志码:
A
摘要:
为提升应急救援人员防护服抗爆能力，减少爆炸事故中人员伤亡数量，以内凹蜂窝型梯度结构为研究对象，采用爆炸冲击实验与数值有限元法相结合的研究手段，通过改变胞元尺寸与胞元凹角对梯度蜂窝结构进行优化，分析梯度结构在爆炸冲击环境下冲击波衰减效率和力学响应规律。结果表明：同等质量条件下，内凹蜂窝结构尺寸梯度为2.58 mm-3.40 mm-2.58 mm、角度梯度30°-22.5°-30°时对冲击波的衰减效应最佳，衰减效率分别为85.44%，82.29%。研究结果可为同时满足轻质、高强抗爆要求的防护服结构设计提供技术支撑。
Abstract:
In order to improve the antiexplosive ability of emergency rescuers’ protective clothing,and reduce the casualties of hazardous chemical explosion accidents,taking the concave honeycomb gradient structure as the research object,the research method of combining the explosion impact experiments with the numerical finite element method was adopted.The optimized design of gradient honeycomb was carried out through changing the cell size and cell concave angle of the concave honeycomb gradient structure,and the attenuation efficiency of shock wave and mechanical response laws of the gradient structure under the explosion impact were compared and analyzed.The results showed that under the same condition of weight,the concave honeycomb structure with a size gradient of 2.58-3.40-2.58 mm and an angle gradient of 30°-22.5°-30° had the best attenuation effect on the shock wave,and its attenuation efficiency reached 85.45 % and 82.29%,respectively.The research results provide technical support for seeking the structural design scheme of protective clothing that simultaneously meet the requirements of light weight,high strength and antiexplosive effect.

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备注/Memo

备注/Memo:
收稿日期： 2020-12-14；网络首发日期： 2021-01-21
* 基金项目： 国家自然科学基金项目（51874041,71861167002）
作者简介： 卫禹辰，博士研究生，主要研究方向为公共安全与个体防护。
通信作者： 袁梦琦，博士，教授，主要研究方向为公共安全与个体防护。
更新日期/Last Update: 2021-02-04