大口径轨道炮弹药运用中多物理场环境表征
Multi-physical Field Environment Characterization of Projectiles in Large-Caliber Railgun Launching
向红军 1曹根荣 1乔志明 1梁春燕 2苑希超1
作者信息
- 1. 陆军工程大学 石家庄校区,河北 石家庄 050003
- 2. 北京理工大学 爆炸科学与技术国家重点实验室,北京 100081
- 折叠
摘要
当前轨道炮相关研究主要集中于小口径轨道炮,对于大口径轨道炮发射过程中弹药的多物理场环境表征缺乏认知.针对该问题设计了一种大口径轨道炮发射一体化弹丸的动态仿真模型,充分考虑了组件之间的接触特征、材料属性变化以及结构变形等实际因素,讨论了发射过程中发射组件的电磁场、温度场以及结构场的时空分布特性.基于仿真结果,对发射过程中弹药运用的可靠性进行了评估.研究结果表明,该型130 mm轨道炮能够将 26 kg弹丸加速至 1 023 m/s,最大过载约为 6 700g.此外,在发射组件出炮口的瞬间,引信感应电流以及TNT药柱所受应力会急剧增大,导致弹药运用存在安全隐患,而温度场对弹药的影响较小.
Abstract
The current research on railguns is mainly focused on small-caliber railguns,lacking an un-derstanding of the multi-physical field environment characterization of projectiles during the launching process of large-caliber railguns.Therefore,this paper develops a dynamic simulation model for the inte-grated projectile launching by large-caliber railgun,fully considering practical factors such as contact char-acteristics,material property changes and structural deformations among components.The spatial and temporal distribution characteristics of the electromagnetic,temperature,and structural fields of the launching components during the launch process are also discussed.Finally,based on the simulation re-sults,the reliability of the projectile is evaluated.The research results indicate that the 130 mm railgun can accelerate a 26 kg projectile to 1 023 m/s,with a maximum overload of approximately 6 700g.In ad-dition,at the moment when the projectile exits the muzzle,the induced current of the fuse and the stress on the TNT powder charge will sharply increase,posing possible safety hazards to the projectile.Howev-er,the temperature field has a relatively insignificant impact on the projectile.
关键词
大口径轨道炮/一体化弹丸/动态发射/多物理场Key words
large-caliber railgun/integrated projectile/dynamic launch/multi-physical field引用本文复制引用
出版年
2024
NETL
NSTL
维普
万方数据