基于SPH的射流成形机理研究
Mechanism research of shaped charge jet with SPH
查看参考文献12篇
|
文摘
|
光滑粒子流体动力学是一种纯Lagrangian的无网格数值计算方法,可以很好地处理动态载荷下材料大变形问题。采用SPH方法对射流成形和拉伸进行初步研究,给出求解爆炸和射流成形的力学模型和离散格式,针对一定锥角药型罩射流成形进行数值研究。结果表明,对爆炸、射流成形等瞬态动力学问题,SPH方法是行之有效的,但在计算过程中也存在数值断裂和应力不稳定等问题。 |
|
其他语种文摘
|
Smoothed particle hydrodynamics,as a total Lagrangian meshfree numerical simulation method,can solve large deformation problems under dynamic loading. Mechanics model and discrete formula were presented. Numerical simulation of shaped charge jet forming process with a certain cone angle was studied. The study shows that SPH is a valid method to simulate transient dynamics problems,such as exploding,shaped charge jet,and so on,but some numerical flaws,like numerical fracture and tensile instability,will coexist. |
|
来源
|
兵器材料科学与工程
,2013,36(4):37-40 【核心库】
|
|
关键词
|
SPH
;
无网格
;
聚能射流
;
数值断裂
|
|
地址
|
1.
中北大学机电工程学院, 山西, 太原, 030051
2.
中国科学院力学研究所, 北京, 100190
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1004-244X |
|
学科
|
一般工业技术 |
|
文献收藏号
|
CSCD:4886025
|
参考文献 共
12
共1页
|
|
1.
Liu G R.
Smoothed particle hydrodynamics:a meshfree particle method,2003:190-239
|
被引
1
次
|
|
|
|
|
2.
Liu M B. A one-dimensional meshfree particle formulation for simulating shockwaves.
Shock Waves,2003,13(3):201-211
|
被引
10
次
|
|
|
|
|
3.
Liu M B. Meshfree particle simulation of the detonation process for high explosives in shaped charge unlined cavity configurations.
Shock Waves,2003,12(6):509-520
|
被引
21
次
|
|
|
|
|
4.
Liu M B. Computer simulation of high explosive explosion using smoothed particle hydrodynamics methodology.
Comput Fluids,2003,32(3):305-322
|
被引
49
次
|
|
|
|
|
5.
Liu M B. Computer simulation of shaped charge detonation using meshless particle method.
Fragblast,2003,7(3):181-202
|
被引
2
次
|
|
|
|
|
6.
Liu M B. Investigations into water mitigation using a meshless particle method.
Shock Waves,2002,12(3):181-195
|
被引
33
次
|
|
|
|
|
7.
宗智. 模拟二维水下爆炸问题的光滑粒子（SPH）方法.
水动力学研究与进展：A辑,2007,22(1):617
|
被引
1
次
|
|
|
|
|
8.
Liu M B. Adaptive smoothed particle hydrodynamics for high strain hydrodynamics with material strength.
Shock Waves,2006,15(1):21-29
|
被引
9
次
|
|
|
|
|
9.
Zhou C E. Three-dimensional penetration simulation using smoothed particle hydrodynamics.
Int J Comput Meth,2007,4(4):671-691
|
被引
8
次
|
|
|
|
|
10.
Lucy L B. A numerical approach to the testing of the fission hypothesis.
Astronomical Journal,1977,82:1013-1024
|
被引
405
次
|
|
|
|
|
11.
Gingold R A. Smoothed particle hydrodynamics:theory and application to no-spherical stars.
Monthly Notices of the Royal Astronomical Society,1977,181:375-398
|
被引
372
次
|
|
|
|
|
12.
Swegle J W. On the feasibility of using smoothed particle hydrodynamics for underwater explosion calculations.
Computational Mechanics,1995,17(3):151-168
|
被引
26
次
|
|
|
|
|
了解气象卫星更多信息，请访问