摘要
针对超空泡射弹火炮武器在航空反水雷作战中的应用,基于有限元分析软件Abaqus耦合欧拉-拉格朗日方法,开展射弹高速入水过程的数值模拟研究。通过对射弹垂直入水过程的数值模拟,获得高速入水载荷的一般形式;分析射弹倾斜入水过程中入水空泡的包覆状态与入水载荷、入水姿态变化之间的耦合关系,揭示射弹入水尾拍这一动态稳定运动的形成机理。不同入水攻角下射弹高速入水尾拍的仿真结果表明,在相同发射状态下,入水攻角是影响射弹密集度的重要因素。
For the use of supercavitation projectile artillery weapon in anti-mine operations,the numerical simulation of high speed water-entry process of projectile is studied based on coupled Eulerian-Lagrangian method.The general form of its load was obtained by studying the vertical water-entry process of projectile.The formation mechanism of tail-slapping is revealed through the analysis of the coupling relationship among covering state of cavity,water entry impact load,and change of projectile attitude in oblique water-entry process of projectile.The numerical study of the high-speed water-entry of projectile at different angles of attack shows that the angle of attack is an important factor affecting the projectile's dispersion.
作者
王晓辉
孙士明
季锦梁
王志
褚学森
WANG Xiaohui;SUN Shiming;JI Jinliang;WANG Zhi;CHU Xuesen(China Ship Scientific Research Center,Wuxi 214082,Jiangsu,China)
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2020年第S01期110-115,共6页
Acta Armamentarii
基金
国防科技重点实验室基金项目(6142203180306)。
关键词
超空泡射弹
高速入水
耦合欧拉-拉格朗日方法
尾拍
supercavitation projectile
high-speed water-entry
coupled Eulerian-Lagrangian method
tail-slapping
作者简介
王晓辉(1988—),男,高级工程师,硕士。E-mail:wxhcssrc@126.com。
