切縫藥包爆轟沖擊動力學行為研究
[Abstract]:High-speed schlieren experiments on detonation fluctuation of slit charge with different structures were carried out. The dynamic evolution mechanism of detonation wave was obtained by numerical simulation. The double slit / coupling slit charge package and double slit / uncoupled slit charge package were studied. The motion process of explosive wave front of single slit / coupling slit charge package and single slit / uncoupled slit charge package is analyzed numerically. The effects of material quality and charge density on detonation fluctuation of slit charge are numerically analyzed. The detonation fluctuation mechanism of slit charge is discussed. The plastic dynamic response of slit tube under explosive load was studied by numerical simulation and phenomenological experiment. The effect of dynamic response of slit tube on the effect of directional fracture blasting is analyzed. The effect of different constitutive models on dynamic response of slit tube is analyzed and the dynamic response characteristics of the tube under different loading rates are calculated. The fixed device of underwater explosive sensor was designed, and the spatial and temporal parameter distribution of the slit charge was studied. The shock wave and bubble pulsation parameters of the slit charge were obtained in the direction of cutting seam and the direction of vertical slit. The time-space parameters of the explosive wave in the slit charge are obtained, and the spectrum characteristics of the explosive wave in the direction of the slit and the direction of the vertical slit are studied, and the time-frequency analysis of the signal of the explosive wave is carried out. In this paper, the mechanism of directional fracture blasting of slit cartridge is explained from a new point of view.
【學位授予單位】:中國礦業(yè)大學(北京)
【學位級別】:博士
【學位授予年份】:2013
【分類號】:TU45;O38
【參考文獻】
相關(guān)期刊論文 前10條
1 何滿潮,曹伍富,王樹理;雙向聚能拉伸爆破及其在硐室成型爆破中的應(yīng)用[J];安全與環(huán)境學報;2004年01期
2 劉永勝;傅洪賢;王夢恕;陳峰賓;張新金;;水耦合定向斷裂裝藥結(jié)構(gòu)試驗及機理分析[J];北京交通大學學報;2009年01期
3 王樹仁;朱振海;魏有志;;空孔導向作用的動光彈研究[J];爆破;1985年02期
4 龔敏,賈聚平,王德勝;爆破模型的動態(tài)光測力學方法研究綜述[J];爆破;2005年01期
5 蒲傳金;郭學彬;張志呈;肖正學;;切縫藥包爆破機理分析與試驗研究[J];爆破;2006年01期
6 李顯寅;蒲傳金;肖定軍;;論切縫藥包爆破的剪應(yīng)力作用[J];爆破;2009年01期
7 張玉明,員永峰,張奇;切縫藥包破巖機理及現(xiàn)場應(yīng)用[J];爆破器材;2001年05期
8 黃福;高速紋影技術(shù)在爆轟實驗中的應(yīng)用[J];爆炸與沖擊;1983年04期
9 朱振海;爆炸加載時光彈性材料動態(tài)性能參數(shù)的測定[J];爆炸與沖擊;1988年01期
10 胡八一,董慶東,韓長生,王德生,胡海波;內(nèi)部爆轟加載下的鋼管膨脹斷裂研究[J];爆炸與沖擊;1993年01期
相關(guān)博士學位論文 前5條
1 高重陽;內(nèi)部爆炸載荷下柱殼結(jié)構(gòu)破裂問題的研究[D];清華大學;2000年
2 趙建平;近中區(qū)瞬時爆炸波識別及其作用規(guī)律研究[D];中南大學;2009年
3 岳中文;缺陷介質(zhì)爆生裂紋擴展規(guī)律的動態(tài)焦散線試驗研究[D];中國礦業(yè)大學(北京);2009年
4 姜琳琳;切縫藥包定向斷裂爆破機理與應(yīng)用研究[D];中國礦業(yè)大學(北京);2010年
5 郭進;航空煤油表面火焰脈動及表面流特性研究[D];中國科學技術(shù)大學;2012年
相關(guān)碩士學位論文 前1條
1 高祥濤;炸藥破碎巖石能量分布研究[D];安徽理工大學;2010年
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