爆破器材
爆破器材
폭파기재
2014年
6期
53-56
,共4页
史兴隆%王呼和%佟铮
史興隆%王呼和%佟錚
사흥륭%왕호화%동쟁
高能破冰弹%水下破冰%弹体%侵彻冰盖%模拟试验
高能破冰彈%水下破冰%彈體%侵徹冰蓋%模擬試驗
고능파빙탄%수하파빙%탄체%침철빙개%모의시험
high-energy icebreaking bomb%underwater ice breaking%projectile body%penetrating ice sheet%simula-tion test
以黄河凌汛期采用爆破法破冰防凌为背景，利用有限元软件ANSYS/LS-DYNA建立了高能破冰弹水下破冰动态响应模型，对高能破冰弹在侵彻冰盖瞬间弹体各部位的应力分布、弹体引信延期时间以及弹体在水下爆炸破碎冰盖过程等主要破冰参数进行了数值模拟，并在黄河破冰防凌现场进行了相同当量药包的模拟破冰试验。模拟试验显示药包放置在水下4.5 m左右对冰盖破碎范围最大。研究结果可为高能破冰弹弹体的优化设计与利用迫击炮发射高能破冰弹进行黄河爆破法破冰排凌作业提供理论支持。
以黃河凌汛期採用爆破法破冰防凌為揹景，利用有限元軟件ANSYS/LS-DYNA建立瞭高能破冰彈水下破冰動態響應模型，對高能破冰彈在侵徹冰蓋瞬間彈體各部位的應力分佈、彈體引信延期時間以及彈體在水下爆炸破碎冰蓋過程等主要破冰參數進行瞭數值模擬，併在黃河破冰防凌現場進行瞭相同噹量藥包的模擬破冰試驗。模擬試驗顯示藥包放置在水下4.5 m左右對冰蓋破碎範圍最大。研究結果可為高能破冰彈彈體的優化設計與利用迫擊砲髮射高能破冰彈進行黃河爆破法破冰排凌作業提供理論支持。
이황하릉신기채용폭파법파빙방릉위배경，이용유한원연건ANSYS/LS-DYNA건립료고능파빙탄수하파빙동태향응모형，대고능파빙탄재침철빙개순간탄체각부위적응력분포、탄체인신연기시간이급탄체재수하폭작파쇄빙개과정등주요파빙삼수진행료수치모의，병재황하파빙방릉현장진행료상동당량약포적모의파빙시험。모의시험현시약포방치재수하4.5 m좌우대빙개파쇄범위최대。연구결과가위고능파빙탄탄체적우화설계여이용박격포발사고능파빙탄진행황하폭파법파빙배릉작업제공이론지지。
The dynamic response model was established using large-scale finite element software ANSYS/LS-DYNA for the ice breaking process by high-energy icebreaking bomb as the routine approach to ice prevention during the ice flood season of the Yellow River. Numerical simulation were carried out on stress distribution within the bomb at the moment of ice sheet penetrating, the delay time of bomb detonator and the floating ice sheet breaking process by underwater bomb. The on-site trial tests for ice sheet breaking and ice prevention at the Yellow River were conducted using the bomb with same explosive equivalent. It shows the largest ice sheet breaking scale when the bomb is placed 4. 5 m underneath the bot-tom of floating ice sheet. The study can provide theoretical support for the optimized design of high-energy icebreaking bomb and ice breaking operation for ice sheet breaking and ice prevention at the Yellow River.
