《Defence Technology(防务技术)》

作品数:1996被引量:3270H指数:16
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《Defence Technology(防务技术)》
主办单位:China Ordnance Society
最新期次:2025年4期更多>>
发文主题:BASED_ONPROJECTILEBALLISTICPENETRATIONEXPLOSIVE更多>>
发文领域:兵器科学与技术航空宇航科学技术化学工程一般工业技术更多>>
发文基金:国家自然科学基金中国博士后科学基金北京市自然科学基金国家重点基础研究发展计划更多>>
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Triple point path prediction for height of burst explosion in highaltitude environment
《Defence Technology(防务技术)》2025年第4期109-119,共11页Rui Li Minghang Hu Rui Sun Yajing Chen Yan Li Quan Wang Xiaorong Cui 
funding from Anhui Engineering Laboratory of Explosive Materials and Technology Foundation(No.AHBP2022B-04);Natural Science Research Project of Anhui Educational Committee(No.2023AH051221);Anhui Provincial Natural Science Foundation(No.2208085QA26);Scientific Research Foundation for High-level Talents of Anhui University of Science and Technology for the project related to this work.
Accurately forecasting the triple point(TP)path is essential for analyzing blast loads and assessing the destructive effectiveness of the height of burst explosion.Empirical models that describe the TP path under norm...
关键词:Blast wave Triple point HIGH-ALTITUDE Mach reflection Height of burst 
Numerical investigation on the engraving process of a pyrotechnic actuator with an improved two-phase flow model of interior ballistic
《Defence Technology(防务技术)》2025年第4期120-132,共13页Yue Li Cong Liu Cheng Cheng Genghui Jiang 
supported by the National Natural Science Foundation of China(Grant No.11972194).
By combining with an improved model on engraving process,a two-phase flow interior ballistic model has been proposed to accurately predict the flow and energy conversion behaviors of pyrotechnic actuators.Using comput...
关键词:Pyrotechnic actuator Engraving process Two-phase flow Pressure oscillation 
Comparative study on the oblique water-entry of high-speed projectile based on rigid-body and elastic-plastic body model
《Defence Technology(防务技术)》2025年第4期133-155,共23页Xiangyan Liu Xiaowei Cai Zhengui Huang Yu Hou Jian Qin Zhihua Chen 
supported by the Postgraduate Research&Practice Innovation Program of Jiangsu Province(Grant No.KYCX24_0714).
To examine the similarities and differences in the evolution of cavity,wetting and dynamics of a highspeed,oblique water-entry projectile with different positive angles of attack,a comparative analysis has been conduc...
关键词:Fluid-structure interaction Rigid-body model Elastic-plastic model Structural deformation Impact loads Structural safety of projectile 
Experimental and numerical study on attenuation of shock waves in ventilation pipes
《Defence Technology(防务技术)》2025年第4期156-168,共13页Wenjun Yu Shuxin Deng Shengyun Chen Bingbing Yu Dongyan Jin Zhangjun Wu Yaguang Sui Huajie Wu 
With different structural forms of ventilation pipes have various attenuation effects on incident shock waves while meeting ventilation requirements.The attenuation mechanism and the propagation law of shock waves in ...
关键词:Hock waves Ventilation pipes Numerical modelling Explosion mechanics 
Research on the protection mechanism of methane explosion in underground space by flexible construction
《Defence Technology(防务技术)》2025年第4期169-183,共15页Xianqi Duan Yulong Duan Zishuang Zhang Jun Long Yaqiao Yang Rui Lang 
supported by the National Natural Science Foundation of China(Grant No.52274177);Science and Technology Research Program of Chongqing Municipal Education Commission(Grant No.KJZD-K202401501);Chongqing Graduate Student Research Innovation Program(Grant No.CYS240800);The Science and Technology Innovation Project for Graduate Students of Chongqing University of Science and Technology(Grant No.YKJCX2420702).
Urban growth has promoted the use of underground spaces,where explosion accidents can be catastrophic.In this study,we investigated the effect of placing flexible construction in front of rigid obstacles on methane ex...
关键词:Explosion protection Flexible construction Urban underground space Methane explosions 
Influence of cryogenic treatment on mechanical and ballistic properties of AA5754 alloy friction stir welded joints
《Defence Technology(防务技术)》2025年第4期184-198,共15页V.Manoj Mohan Prasath S.Dharani Kumar Saurabh S.Kumar 
In the present study,the mechanical and ballistic properties of friction stir welded(FSW)aluminum alloy(AA5754)samples were investigated,both untreated and cryogenically treated,when impacted by a 7.62 mm armour-pierc...
关键词:AA5754 alloy Ballistic and mechanical properties Cryogenic treatment Depth of penetration 
Hypersonic glide vehicle trajectory prediction based on frequency enhanced channel attention and light sampling-oriented MLP network
《Defence Technology(防务技术)》2025年第4期199-212,共14页Yuepeng Cai Xuebin Zhuang 
Hypersonic Glide Vehicles(HGVs)are advanced aircraft that can achieve extremely high speeds(generally over 5 Mach)and maneuverability within the Earth's atmosphere.HGV trajectory prediction is crucial for effective de...
关键词:Hypersonic glide vehicle Trajectory prediction Frequency enhanced channel attention Light sampling-oriented MLP network 
Research on multi-view collaborative detection system for UAV swarms based on Pix2Pix framework and BAM attention mechanism
《Defence Technology(防务技术)》2025年第4期213-226,共14页Yan Ding Qingxin Cao Bozhi Zhang Peilin Li Zhongjiao Shi 
supported by the Natural Science Foundation of China,Grant No.62103052.
Drone swarm systems,equipped with photoelectric imaging and intelligent target perception,are essential for reconnaissance and strike missions in complex and high-risk environments.They excel in information sharing,an...
关键词:Drone swarm systems Reconnaissance and strike Image generation Multi-view detection Pix2Pix framework Attention mechanism 
Experimental and numerical study on external explosions of cylindrical versus spherical charges at tunnel entrance
《Defence Technology(防务技术)》2025年第4期227-243,共17页Dan Luo Jinsheng Hu Anbao Wang Xiao Yu Mengmeng Zhang Meili Yao Chun Li 
Most of the existing studies on tunnel blast wave are based on spherical or grouped charges,however,conventional weapons are mostly cylindrical rather than spherical.In order to analyze the impact of cylindrical charg...
关键词:Cylindrical charges Tunnel blast wave Equivalent coefficient Empirical formula Experiment and numerical simulation 
A fast-running engineering tool for assessing structural vulnerability to blast loading
《Defence Technology(防务技术)》2025年第4期244-254,共11页Carlo Crispino Salvatore Annunziata Alberto Contini Luca Lomazzi Andrea Manes 
Assessing the vulnerability of a platform is crucial in its design.In fact,the results obtained from vulnerability analyses provide valuable information,leading to precise design choices or corrective solutions that e...
关键词:VULNERABILITY Blast loading Probabilistic assessment Analytical models Fast-running engineering tool 
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