Experimental studies of explosion energy output with different igniter mass  

作　　者：Heyang Xu Weibing Li Wenbin Li Yajun Wang 

机构地区：[1]Nanjing University of Science and Technology

出　　处：《Defence Technology（防务技术）》2019年第5期808-814,共7页Defence Technology

基　　金：funded by the National Natural Science Foundation of China No.11202103;Postgraduate Research&Practice Innovation Program of Jiangsu Province No.KYCX18_0472

摘　　要：For study the energy output law of cylindrical charge with shell induced by different input energies,four different black powder masses were selected to ignite the main charge.Fragmentation degree of the shell was qualitatively analyzed by the area of holes on the witness plate and the recovered fragments mass.Through theoretical analysis,established the functional relationship between the average mass of fragments and the relative energy output of warhead,obtained how the relative energy output of charge changed with different initial energy input.The results showed that the change of input energy could lead to obvious variation in fragment characteristics,and could also control the output of charge.When the igniter mass increases from 1.55 g to 5.00 g,the relative energy output of the charge increases by 26.28%.Excessive initial input energy will destroy the shell confine in advance,resulting in a decrease in the relative energy output of charge.For study the energy output law of cylindrical charge with shell induced by different input energies,four different black powder masses were selected to ignite the main charge.Fragmentation degree of the shell was qualitatively analyzed by the area of holes on the witness plate and the recovered fragments mass.Through theoretical analysis,established the functional relationship between the average mass of fragments and the relative energy output of warhead,obtained how the relative energy output of charge changed with different initial energy input.The results showed that the change of input energy could lead to obvious variation in fragment characteristics,and could also control the output of charge.When the igniter mass increases from 1.55 g to 5.00 g,the relative energy output of the charge increases by26.28%.Excessive initial input energy will destroy the shell confine in advance,resulting in a decrease in the relative energy output of charge.

关 键 词：analysis  ENERGY MASS 

分 类 号：F42[经济管理—产业经济]