Simulation of A Slender Projectile Impacting A Hard Target in Water

摘要：

　　Aiming at improving the credibility of the firing control of the underwater rocket fuze,which is based on the principle that the firing control system is triggered by the collision signal of the projectile,a finite element method to analyze the characteristics of the collision of a projectile striking a hard target in water is proposed.Considering the influence of the water environment and the projectile structure,a solid projectile model and a shell projectile model with housing in the head are established to impact a hard target respectively in air and in water by using the LS-DYNA module of the ANSYS software.The results truly reflect the collision course showing that the acceleration of projectile during the collision course in air is significantly larger than in water,while the shell projectile model nearly has the same acceleration with the solid projectile model during the collision course,and the error can be ignore.The conclusions provide the basis for the selection of firing control system.

关键词： Underwater Ammunition Underwater Collision Fluid-Structure Interaction

作者: Jianlu LIU Xian CHENG Yong CHEN

作者单位: School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,P.R.China

会议类型: 国际会议

会议名称: The 5th International Conference on Mechanical Engineering and Mechanics(第五届国际机械工程与力学会议)

会议地点: 江苏扬州

会议语种:英文

页码: 366-371

在线出版日期: 2014-08-21（万方平台首次上网日期，不代表论文的发表时间）