学术论文

      发散形环形切割装置的数值模拟仿真

      Numerical Simulation of Divergent Shaped Annular Cutting Device

      摘要:
      目前环形切割装置产生的无论是射流还是EFP都不太稳定,在飞行过程中由于空气动力都会导致侵彻体偏斜,靶板的侵彻达不到预期的穿孔效果.针对该问题,设计了一种发散形的环形切割装置,利用AUTODYN软件,对这种环形切割装置在不同发散角下进行了数值模拟仿真.仿真结果表明,当发散角度在7°左右时,可以达到最佳开孔效果,且比现有环形切割装置开孔直径大;侵彻过程中也不存在内偏现象.
      Abstract:
      At present, either the jet or the EFP is produced by this kind of combat that is not quite stable.In the course of flight due to aerodynamics, it will lead to deviations occur, so that the penetration of the target plate does not achieve the desired perforation effect.This paper designs a divergent shaped ring cutting device, using the AUTODYN software, and the numerical simulation of the circular cutting device under different divergence angle is carried out.The simulation results show that when the divergence angle is about 7 °, the best opening effect can be achieved and is larger than that of the existing ring cutting device.Penalization process will not exist within the bias phenomenon.
      Author: LI Xu-dong YIN Jian-ping CHEN Jie
      作者单位: 中北大学 机电工程学院,太原,030051
      刊 名: 兵器装备工程学报 ISTIC
      年,卷(期): 2017, 38(5)
      分类号: TG413
      在线出版日期: 2017年7月4日
      基金项目: 国家自然科学基金项目