Distribution Regularity of Muzzle Shock-Wave Inside Protective Cover  

作　　者：WU Jun LIU Jingbo DU Yixin 

机构地区：[1]Department of Civil Engineering, Tsinghua University, Beijing 100084, China [2]Luoyang Hydraulic Engineering Technical Research Institute, Luoyang 471023, China

出　　处：《Transactions of Tianjin University》2006年第B09期161-164,共4页天津大学学报（英文版）

基　　金：Supported by National Natural Science Foundation of China (No. 50578082)

摘　　要：The injury of gunners caused by muzzle shock-wave has always been a great problem when firing inside the protective cover. The distribution regularity and personnel injury from the muzzle blast-wave were investigated by both test and numerical simulation. Through the inside firing test, the changes of overpressure and noise have been measured at different measuring points in the thin-wall cover structure with different open widths and shallow covering thickness. The distribution regularity of muzzle shock-wave with different firing port widths is calculated by ANSYS/LSDYNA software. The overpressure distribution curves of muzzle shock-wave inside the structure can be obtained by comparing the test results with the numerical results. Then, the influence of open width and shallow covering thickness is proposed to give a reference to the protective design under the condition of the inside firing with the same cannon caliber.The injury of gunners caused by muzzle shock-wave has always been a great problem when firing inside the protective cover. The distribution regularity and personnel injury from the muzzle blast-wave were investigated by both test and numerical simulation. Through the inside firing test, the changes of overpressure and noise have been measured at different measuring points in the thin-wall cover structure with different open widths and shallow covering thickness. The distribution regularity of muzzle shock-wave with different firing port widths is calculated by ANSYS/LS- DYNA software. The overpressure distribution curves of muzzle shock-wave inside the structure can be obtained by comparing the test results with the numerical results. Then, the influence of open width and shallow covering thickness is proposed to give a reference to the protective design under the condition of the inside firing with the same cannon caliber.

关 键 词：artillery inside firing muzzle shock-wave OVERPRESSURE distribution regularity 

分 类 号：TJ30[兵器科学与技术—火炮、自动武器与弹药工程]