爆破
爆破
폭파
BLASTING
2014年
4期
31-36
,共6页
刘彩花%焦国太%韩晶%张世豪
劉綵花%焦國太%韓晶%張世豪
류채화%초국태%한정%장세호
多弹爆炸%爆炸荷载%运移特性%碎屑粒径%数值模拟
多彈爆炸%爆炸荷載%運移特性%碎屑粒徑%數值模擬
다탄폭작%폭작하재%운이특성%쇄설립경%수치모의
multi-projectile explosion%explosion load%transport character%debris particle size%numerical simulation
为了增加钻地武器的侵彻深度,提出一种“串联式”多弹连续爆炸作用方式。在单发弹静爆试验的基础上,拟合出多弹爆炸的周期性爆炸荷载曲线。通过FLUENT软件与EDEM软件耦合数值模拟可知,侵彻通道深度1m时周期性爆炸荷载作用下碎屑的运移能力得到增强,同时进一步研究了介质碎屑运移特性的影响因素。仿真结果表明:介质碎屑的运移能力与爆炸荷载峰值成正比,与碎屑粒径及弹体偏离钻地通道轴线距离成反比。
為瞭增加鑽地武器的侵徹深度,提齣一種“串聯式”多彈連續爆炸作用方式。在單髮彈靜爆試驗的基礎上,擬閤齣多彈爆炸的週期性爆炸荷載麯線。通過FLUENT軟件與EDEM軟件耦閤數值模擬可知,侵徹通道深度1m時週期性爆炸荷載作用下碎屑的運移能力得到增彊,同時進一步研究瞭介質碎屑運移特性的影響因素。倣真結果錶明:介質碎屑的運移能力與爆炸荷載峰值成正比,與碎屑粒徑及彈體偏離鑽地通道軸線距離成反比。
위료증가찬지무기적침철심도,제출일충“천련식”다탄련속폭작작용방식。재단발탄정폭시험적기출상,의합출다탄폭작적주기성폭작하재곡선。통과FLUENT연건여EDEM연건우합수치모의가지,침철통도심도1m시주기성폭작하재작용하쇄설적운이능력득도증강,동시진일보연구료개질쇄설운이특성적영향인소。방진결과표명:개질쇄설적운이능력여폭작하재봉치성정비,여쇄설립경급탄체편리찬지통도축선거리성반비。
In order to increase the penetration depth of weapons,a new scheme of tandem multi-projectile contin-uous explosion was put forward. Based on static explosion test of single projectile,the periodical explosion load curve of multi-projectile explosion was also fitted. Through the coupling numerical simulation by the software FLUENT with EDEM,within 1m deep penetrating channels,the debris transport capability was enhanced under continuous explo-sion load. In addition,the influence factors of debris transport character was discussed. Results showed that debris transport capability was proportional to the peak value of explosion load,and inversely proportional to debris particle size and the offset distance of projectile and penetrating channel.