射孔弹爆轰波间干扰的有限元分析

基金项目:

国家高技术研究发展计划(863计划)项目(2006AA09Z326)

Finiteelementanalysisofdetonationwaveinterference amongperforatingbullet

Funds:

National High-techRDProgram (863Program)(2006AA09Z326)

摘要: 通过有限元显式动力分析程序的显式算法,对石油射孔弹顺序起爆后弹间爆轰冲击波干扰的过程进行了2维数值模拟,并考虑了弹体对弹间干扰的影响,对模拟结果进行了讨论;分析了影响高孔密射孔技术的弹间干扰产生的原因,主要是爆轰冲击波的压力场受到不同程度的干扰,致使初始爆轰波形破坏。计算结果与已有的物理现象和规律吻合,说明该计算模型和模拟方法合理、可行,可用于高孔密射孔枪的优化设计。
- 爆炸力学 /
- 聚能射流 /
- 有限元分析 /
- 弹间干扰 /
- 偏转
Abstract: Two-dimensionalnumericalsimulationofdetonationwaveinterferenceamongperforating bulletswasmadebyemployingtheexplicitdynamicfiniteelementprogram.Effectsoftheprojectile bodyondetonationwaveinterferenceamongperforatingbulletswereconsidered.Andtheresultsof numericalsimulationwerediscussed.Themaincauseofinterferenceamongcharges,whichaffected perforationresultinhighshotdensityperforatingtechnology,wastheinterferedpressurefieldof blastwaveanddamageddetonationwave,whichwasdesignedinitially.Theresultsofnumericalsimulationareinagreementwithpreviousphysicalphenomenaandlaws. Thestudyindicatesthatthecalculationmodelandsimulationmethodarereasonableandfeasible, whichcanbeappliedtotheoptimizingdesignforgun- perforatorofhighshotdensity.
- mechanicsofexplosion /
- shapedchargejet /
- finiteelementanalysis /
- interferenceamong charges /
- deflection