爆破器材
爆破器材
폭파기재
2014年
5期
26-29
,共4页
爆炸力学%含铝炸药%水中爆炸%近场冲击波%高速扫描相机
爆炸力學%含鋁炸藥%水中爆炸%近場遲擊波%高速掃描相機
폭작역학%함려작약%수중폭작%근장충격파%고속소묘상궤
explosion mechanics%aluminized explosive%underwater explosion%shock wave at close-field%high speed scanning camera
为揭示 RS211和 GUHL 两种含铝炸药水中爆炸近场冲击波的传播特性,采用高速扫描相机和阴影照相技术记录了近场冲击波沿柱形装药轴向的传播轨迹,结合 Rankine-Hugoniot 关系推算出了近场冲击波传播速度及阵面压力随传播距离的衰减规律,并与 TNT 炸药的结果进行了对比。同时,还结合近场冲击波的初始参数和Goranson 关系式计算出了炸药的爆压值。结果表明,初始冲击波阵面压力由大到小的顺序为 RS211、TNT、GUHL,在压力的衰减过程中,铝粉的反应使得冲击波的压力衰减速率得到降低,且 GUHL 炸药近场冲击波阵面压力的衰减最为平缓。
為揭示 RS211和 GUHL 兩種含鋁炸藥水中爆炸近場遲擊波的傳播特性,採用高速掃描相機和陰影照相技術記錄瞭近場遲擊波沿柱形裝藥軸嚮的傳播軌跡,結閤 Rankine-Hugoniot 關繫推算齣瞭近場遲擊波傳播速度及陣麵壓力隨傳播距離的衰減規律,併與 TNT 炸藥的結果進行瞭對比。同時,還結閤近場遲擊波的初始參數和Goranson 關繫式計算齣瞭炸藥的爆壓值。結果錶明,初始遲擊波陣麵壓力由大到小的順序為 RS211、TNT、GUHL,在壓力的衰減過程中,鋁粉的反應使得遲擊波的壓力衰減速率得到降低,且 GUHL 炸藥近場遲擊波陣麵壓力的衰減最為平緩。
위게시 RS211화 GUHL 량충함려작약수중폭작근장충격파적전파특성,채용고속소묘상궤화음영조상기술기록료근장충격파연주형장약축향적전파궤적,결합 Rankine-Hugoniot 관계추산출료근장충격파전파속도급진면압력수전파거리적쇠감규률,병여 TNT 작약적결과진행료대비。동시,환결합근장충격파적초시삼수화Goranson 관계식계산출료작약적폭압치。결과표명,초시충격파진면압력유대도소적순서위 RS211、TNT、GUHL,재압력적쇠감과정중,려분적반응사득충격파적압력쇠감속솔득도강저,차 GUHL 작약근장충격파진면압력적쇠감최위평완。
To understand the propagation characteristics of close-field shock waves for aluminized explosives RS211 and GUHL by underwater explosion, propagation paths along the longitudinal direction of charge cylinder were recorded by shadow photography using a high speed scanning camera and processed to distance-time curves of close-filed shock wave. Their attenuation laws of propagation velocity and front pressure were deduced using the Rankine-Hugoniot relationship and compared with these of TNT. Furthermore, with the initial parameters of shock wave the detonation pressures of these explosives were calculated based on Goranson relation. The results show the decreased initial pressures of shock wave in the order of RS211, TNT and GUHL, decreased speed of front pressure attenuation due to the reaction of aluminum which is minimal in GUHL.