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- Title
大质量高动态侵彻战斗部爆炸破片分布数值仿真与试验研究.
- Authors
孙浩; 张见升; 李超; 何降润
- Abstract
In order to solve the problem of the distribution of natural fragments flying characteristics of the dynamic explosion of large-mass and high-dynamic penetrating warheads, a dynamic simulation test based on the controllable speed and explosion point of the rocket sled launch platform was designed, and the large-mass mass with an implicated speed of 800 m/s was designed. Penetrate the scattering characteristics of warhead explosion fragments; propose a method to segment the warhead geometry, generate a reasonable random natural fragment group through the Mott model, and use the FEM and DEM coupling method to construct the Lagrangian energy system control equation, The dynamic relaxation method was used to solve the explicit iterative problem, and the full-time spatial domain evolution process of the fragment field was numerically simulated. Comparative analysis of the simulation and experimental results showed that the relative error of the number of natural fragments hitting the target was 3.3%, and the relative error of the scattering angle calculation was 1.22%., verified the reliability of the numerical simulation method. This research provides an accurate prediction method for the fragment distribution of penetrating warheads under large-mass and high-dynamic conditions, and also provides support for the damage effectiveness assessment of large-mass and high-dynamic penetrating warheads.
- Subjects
ROCKET launching; DYNAMIC testing; DYNAMIC simulation; WARHEADS; RELAXATION methods (Mathematics); PROBLEM solving
- Publication
Journal of Ordnance Equipment Engineering, 2023, Vol 44, Issue 9, p216
- ISSN
2096-2304
- Publication type
Article
- DOI
10.11809/bqzbgcxb2023.09.028