机电学院是北京理工大学以军为主、军民融合、具有鲜明军工特色的主要院系之一,其前身是成立于1954年的第二机械系(弹药系),经过半个多世纪的建设与发展,特别是改革开放以来,已形成多学科、多层次的办学实体,学科专业和科学研究国防特色鲜明,办学实力雄厚,规模不断扩大,质量不断提高,各项工作都取得了明显成绩... [详细]
作者: 杨珊,王树山,王韫泽,桂秋阳,曾晶,郑灿杰,贾曦雨 (北京理工大学爆炸科学与技术国家重点实验室;航天科工智能运筹与信息安全研究院(武汉)有限公司;山东特种工业集团有限公司)
出处: 火炸药学报 2022 第2期
关键词: 爆炸力学;成型装药;水下侵彻;多层间隔靶;Jet/JPC/EFP
摘要: 为了研究对比水下大炸高条件下,典型成型装药结构(Jet/JPC/EFP)对多层间隔靶的侵彻威力,以期支撑和推动水下高效毁伤技术创新发展,结合一定工程背景设计了一种成型装药和多层间隔靶结构。分别采用锥形罩、半球罩和球缺罩形成Jet、JPC和EFP,应用AUTODYN软件进行水下大炸高侵彻数值仿真;然后 ...
作者: Zhongwen Yue1;Xu Wang1;Peng Qiu1,2,3;Linzhi Peng1;Jun Zhou1;Akang Li1; (1School of Mechanics & Civil Engineering, China University of Mining & Technology –Beijing, Room 218, Lijian Building, Ding;11Xueyuan Road, Haidian District, Beijing 100083, China;2Key Laboratory of In-Situ Property-Improving Mining of Ministry of Education, Taiyuan University of Technology, Taiyuan, Shanxi Province 030024, China;3State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Haidian District, Beijing 100081, China)
出处: Materials Today Communications 2022 Vol.31 P103536
关键词: Crack overlap;Explosion;Lenticular fragment;Caustics method;Mixed mode failure
摘要: Phenomena of crack overlaps are very common and essential in tunnel constructions by rock blasting. In this study, in conjunction with the high-speed ...
作者: Xin Wang1,2;Haibo Ji3,4;Xue Li3,4;Shengjie Sun5;Qiancheng Zhang1;V.P.W. Shim2;Tian Jian Lu3,4; (1State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi\'an Jiaotong Uni, versity, Xi\'an 710049, China;2Impact Mechanics Laboratory, National University of Singapore, Singapore 117575, Singapore;3State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;4MIIT Key Laboratory of Multifunctional Lightweight Materials and Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;5State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, PR China)
出处: International Journal of Impact Engineering 2022 P104250
摘要: The mechanical response of highly stretchable polyurea elastomer at various strain rates is investigated via experiments, theoretical analysis, and nu ...
作者: Floris Goerlandt1;Jie Li2,3;Genserik Reniers4,5,6; (1Dalhousie University, Department of Industrial Engineering, Halifax, Nova Scotia, Canada;2Department of Safety Science and Engineering, School of Ocean Science and Engineering, Shanghai Maritime University, China;3State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, China;4Safety and Security Science, Faculty of Technology, Policy and Management, Delft University of Technology, The Netherlands;5Antwerp Research Group on Safety and Security (ARGoSS), Faculty of Applied Economics, University of Antwerp, Belgium;6CEDON, KU Leuven, 1000 Brussels, Belgium)
出处: Journal of Safety Science and Resilience 2022
关键词: Safety management system;Bibliometrics;Scientometrics;VOSviewer;CiteSpace
摘要: Safety management systems (SMSs) are widely applied across many industrial sectors, and a large body of literature has been published addressing their ...
作者: 岳胜哲,陈利,张晓伟,李元龙,张庆明 (北京理工大学爆炸科学与技术国家重点实验室;北京航天长征飞行器研究所)
出处: 兵器装备工程学报 2022 第4期
关键词: 非对称类椭圆截面;不对称度;贯穿;姿态偏转;弹道极限速度
摘要: 为研究非对称类椭圆截面弹体的穿甲问题,通过定义非对称类椭圆截面弹体的不对称度,建立了5种弹体模型,对每种弹体在不同初始速度条件下30°倾斜铝靶的贯穿过程进行了数值模拟研究。结果表明:在该初速范围条件下,与传统圆截面弹型相比,非对称类椭圆截面弹型弹道极限速度变低,偏转角度增大。对于非对称类椭圆截面弹型 ...
作者: 于跃,杨兴,韩志跃,刘欢,王芳,邓利 (北京化工大学生命科学与技术学院;北京理工大学爆炸科学与技术国家重点实验室)
出处: 北京化工大学学报(自然科学版) 2022 第49卷 第1期 P1-10
关键词: 脂肪酶;脂肪族聚酯;酶催化;缩聚反应
摘要: 近年来,酶催化合成聚酯由于具有反应条件温和、选择性高、无需保护- 脱保护、环境友好、产物易降解等优点而越来越受到人们的关注。本文综述了脂肪酶催化缩聚合成脂肪族聚酯的研究进展,介绍了脂肪酶以及饱和脂肪族聚酯、不饱和脂肪族聚酯的酶催化合成,总结了酶催化聚合存在的问题并提出了相应的改进策略,可以为相关研究 ...
作者: 刘正,聂建新,徐星,朱英中,刘攀,郭学永,闫石,张韬 (北京理工大学爆炸科学与技术国家重点实验室;内蒙航天动力机械测试所;重庆红宇精密工业集团有限公司)
出处: 兵工学报 2022 第43卷 第3期 P503-512
关键词: 密闭空间;六硝基六氮杂异伍兹烷基复合炸药;准静态压力;能量释放
摘要: 为研究密闭空间内六硝基六氮杂异伍兹烷(CL-20)基复合炸药爆炸能量释放特性,实验测试了药氧比为0.35~1.00炸药样品内爆产生的准静态压力。基于理想气体绝热模型和铝粒子气化燃烧方程,计算分析了不同药氧比样品爆炸的能量释放过程,应用非线性有限元AUTODYN软件模拟了不同药氧比炸药样品密闭空间内爆 ...
作者: 周宏元,于鸿鑫,王小娟,石南南 (北京工业大学城市与工程安全减灾教育部重点实验室;北京理工大学爆炸科学与技术国家重点实验室)
出处: 复合材料学报 2022 第39卷 第2期 P695-706
关键词: 玄武岩纤维平纹织物;建筑固体废弃物颗粒;响应过程;破坏形式;荷载传递;能量吸收
摘要: 为探索建筑固体废弃物再利用的新方式,提出玄武岩纤维平纹织物约束建筑废弃物散体颗粒组合结构,并采用准静态单轴压缩试验对其力学性能、吸能特性等方面进行研究。研究分别讨论了建筑固体废弃物颗粒种类、建筑固体废弃物颗粒的粒径级别、玄武岩平纹织物约束层数对其响应过程、破坏形式、荷载传递、能量吸收的影响,结果表明 ...
作者: Dajun Xin1;Junsheng Zeng2;Kun Xue1; (1State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China;2Intelligent Energy Lab, Frontier Research Center, Peng Cheng Laboratory, Shenzhen 518000, China)
出处: Powder Technology 2022 P117412
关键词: Drag coefficient;Non-spherical fragment;Machine learning;Terminal ballistics
摘要: The hazard evaluation of the fragments produced from an explosion requires an accurate prediction of the motion of fragments subjected to gravity and ...
作者: Qi Jing1;Dan Wang2;Qingming Liu1;Changqi Liu1;Zhisong Wang1;Zongling He1;Zhou Yang1; (1State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China;2Beijing Key Laboratory of Metro Fire and Passenger Transportation Safety, China Academy of Safety Science and Technology, Beijing 100012, China)
出处: Fuel 2022 Vol.322 P124238
关键词: Flame acceleration;Mixed fuel;Secondary flame;Incomplete combustion;Sensitivity analysis
摘要: As a high energy density hydrocarbon fuel, JP-10 is widely used in various types of engines. However, JP-10 also has problems such as not easy to igni ...