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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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坑道截面形状对化爆冲击波传播规律的影响程度分析
DOI: 10.3969/j.issn.1671-7627.2009.06.009, PP. 41-44
Keywords: 爆炸力学,爆炸冲击波,数值模拟,坑道,截面形状
Abstract:
为了弄清坑道截面形状对化爆冲击波传播规律的影响,采用lsdyna动力有限元软件对不同形状坑道内化爆冲击波的传播过程进行数值模拟和对比分析．研究表明：采用合理的有限元模型可以有效地模拟坑道中化爆冲击波的传播过程;化爆冲击波在不同截面形状坑道内的衰减规律基本一致,但冲击波超压峰值有显著差异;圆形坑道内化爆冲击波超压峰值最低,是直墙圆拱形坑道内的60%左右，正方形坑道内超压峰值最高，是直墙圆拱形坑道内的300%左右;工程设计时，必须考虑坑道截面形状对冲击波的影响，宜尽量采用圆形坑道．
| [1] | lixiudi,zhengyingren.intunnelblastpressureempiricalformulasfordetonationsexternal,internalandatthetunnelentrance[c]∥proceedingsofthe1stinternationalconferenceonanalysisanddesignagainstexplosiveandimpactloads.tianjin:transactionsoftianjinuniversity,2006:177-181.
|
| [2] | brittjr.attenuationofshortdurationblastinentrancewaysandtunnels[c]∥proceedingsofthe2ndsymposiumontheinteractionofnonnuclearmunitionswithstructures.panama:[s.n.],1985:466-471.
|
| [3] | scheklinskiglückg.scalemodelteststodetermineblastparametersintunnelsandexpansionroomsfromhechargesinthetunnelentrance[c]∥proceedingsofthe4thinternationalsymposiumontheinteractionofnonnuclearmunitionswithstructures.panama:[s.n.],1989:45-49.
|
| [4] | scheklinskiglückg.blastintunnelsandroomsfromcylindricalhechargesoutsidethetunnelentrance[c]∥proceedingsofthe6thinternationalsymposiumontheinteractionofnonnuclearmunitionswithstructures.panama:[s.n.],1993:68-73.
|
| [5] | welchcr.intunnelairblastengineeringmodelforinternalandexternaldetonations[c]∥proceedingsofthe8thinternationalsymposiumoninteractionoftheeffectsofmunitionswithstructures.virginia:[s.n.],1997:195-208.
|
| [6] | 何翔,任辉启,李茂生,等.305工程内爆炸试验中的冲击波传播规律[j].防护工程,2002,24(2):1-8.
|
| [7] | hexiang,renhuiqi,limaosheng,etal.theregularityofairblastwavepropagationin305explosiontestproject[j].protectiveengineering,2002,24(2):1-8.
|
| [8] | 郑颖人,李秀地.坑道中冲击波的传播规律与防护门的布置研究[r].南京:解放军理工大学工程兵工程学院,2007.
|
| [9] | livermoresoftwaretechnologycorporation.lsdynakeyworduser′smanualversion970[eb／ol].(2006-07-18).http:∥download.caenet.cn／downinfo9497.html.
|
| [10] | 亨利奇j.爆炸动力学及其应用[m].能建国，译.北京:科学出版社,1987.
|
| [11] | 范亚夫,段祝平.johnsoncook材料模型参数的实验测定[j].力学与实践,2003,25(5):40-43.
|
| [12] | fanyafu,duanzhuping.cylinderexplosivetestandmaterialmodelofjohnsoncook[j].mechanicsandpractice,2003,25(5):40-43.
|
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