作者：王成¹;，王雪桃¹;，李涛¹;，张志刚^2,3;，孙伟福¹; （¹北京理工大学爆炸科学与技术国家重点实验室；²中煤科工集团重庆研究院有限公司；³煤矿灾害防控全国重点实验室）

出处：北京理工大学学报 2024

关键词：爆炸冲击波；复杂结构；数值模拟；分块续算

摘要：为研究爆炸冲击波在矿井巷道等复杂地下密闭空间内的传播过程及衰减规律，提出了一种基于数据流的分块续算方法.该方法解决了计算资源的大量浪费问题，实现了大尺寸复杂地下密闭空间内冲击波传播的大规模、高效率、高精度数值模拟.方形坑道内爆过程的数值结果与实验结果基本一致，证明了该计算方法的准确性.标准模型算例全 ...

发明人：邵建锟，王成，王若星，孙稼琛

申请日期：2023.10.10

摘要：本发明公开了一种基于分子光谱的高带宽流速诊断方法，将锁频技术应用于基于分子光谱的气体流速测量技术中，实现高带宽的气体流速测量，提高数据采集质量和分析精度。该方案具体为：控制激光器输出待测目标气体吸收线中心波长的单波长激光信号。信号经电光调制器获得调制后的光信号，经气体流场和光电探测器转换得到时域电信 ...

作者：Jingjie Ren^1,2;Bo Zhao¹;Cheng Wang²;Mingshu Bi¹;CA1 （¹School of Chemical Engineering, Dalian University of Technology, Dalian, 116023, Liaoning, China;²State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, 100081, China）

出处：Journal of Loss Prevention in the Process Industries 2020

摘要：In this study, the strong boiling process of a superheated liquid induced by pressure relief at the top of a vertical vessel was experimentally invest ...

作者：Zhiqiang Hu，Jianli Shao，Shiyu Jia，Weidong Song，Cheng Wang （State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology）

出处：Defence Technology 2024

关键词：Polyurethane；foam；Shock；wave；Attenuation；Atomistic；simulation

摘要：Porous materials are widely used in the field of protection because of their excellent energy absorption characteristics. In this work, a series of po ...

作者：Shiyu Jia¹;，Cheng Wang¹;，Wenlong Xu²;，Dong Ma¹;，Fangfang Qi¹; （¹State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology；²Institute for Advanced Technology, Shandong University）

出处：Defence Technology 2024

关键词：Free-field；explosion；Weak；shock；wave；mitigation；Polyurea；Polyurethane；foam；Multi-layered；composites

摘要：In recent years, explosion shock wave has been considered as a signature injury of the current military conflicts. Although strong shock wave is letha ...

作者：Yuanbo Sun，Jianning Gou，Cheng Wang，Qiang Zhou，Rui Liu，Pengwan Chen，Tonghui Yang，Xiang Zhao （State Key Laboratory of Explosion Science and Technology Beijing Institute of Technology；Beijing HIWING Scientific and Technological Information Institute；School of Aerospace Engineering, Tsinghua University）

出处：Defence Technology 2024

关键词：Explosive；welding；Hydrodynamic；instabilities；Elasticity

摘要：By considering the joint effects of the Kelvin-Helmholtz(KH)and Rayleigh-Taylor(RT)instabilities,this paper presents an interpretation of the wavy pat ...

作者：孙远翔，刘新，陈岩武，王成 （北京理工大学爆炸科学与技术国家重点实验室）

出处：舰船科学技术 2024

关键词：水下爆炸；气泡射流载荷；实验研究；结构毁伤

摘要：气泡射流载荷是造成水下结构毁伤的重要因素。本文从水下爆炸气泡射流产生的实验装置和条件、气泡射流载荷特性及其对结构的毁伤等方面对国内外相关领域的研究进行综述，总结气泡射流实验技术和数值模拟现状，梳理气泡射流载荷特征及其对结构毁伤的影响规律，为水下武器的研制及舰船抗爆能力的提升提供参考。

作者：Zhao, Fuyu¹; Wang, Cheng¹; Jia, Xiyu¹; Wang, Wanli¹; （¹State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing; 100081, China）

出处：SSRN 2022

摘要：Large deformation problems are universal existence in multi-material impact dynamics. Dynamic mechanical behavior of the material can be observed by n ...