含能材料2017，Vol.25Issue(9)：722-725,4.DOI:10.11943/j.issn.1006-9941.2017.09.004
一种新型大弧厚六翼星孔棒状发射药的燃烧特性
Combustion Characteristics of Seraph Star-hole Gun Propellant with Large Web Size
贾永杰 1杨建兴 1石先锐 1崔鹏腾1
作者信息
- 1. 西安近代化学研究所,陕西西安710065
- 折叠
摘要
Abstract
A new seraph star-hole stick gun propellant with large web size was designed and prepared.The combustion characteristics of the star-hole stick gun propellants with different ratios of length to diameter(L/D=1,2,6) and different sealing layer thicknesses/gun propellant web size ratios (s/e1 =0,0.05,0.1) were studied by closed bome and combined with a large caliber gun,the experimental verification was performed.Results show that the combustion of the star-hole propellant is stable,revealing a parallel layer combustion.When the L/D increases from 1 to 6,the progressive combustion factor Pr increases by 56.8％ from 0.285 to 0.447,and the maximum pressure point delays.The L-B curves of end plane plugging propellants display obvious low initial combustion activity and hole breaking combustion.When the 5/e1 increases from 0 to 0.05 and 0.1,the initial gas generaation quantity of the star-hole stick gun propellant were reduced by about 1/2,and the hole breaking times were between the burning time needed to burn 10％ to 20％ (burned fraction) propellants.Selecting appropriate thicknesses of the plugging layers can realize the controllable regulation of the gas generation law of the propellants.When the s/e1 increases from 0 to 0.05 and 0.1,the maximum bore pressure Pm decreases by 1.39％ and 3.59％ respectively,however,the initial speed of projectile at 32.5 m from gun muzzle increases by 0.28％ and 1.4％,respectively.关键词
星孔棒状发射药/长径比/端面封堵/燃烧特性/内弹道性能Key words
star-hole stick gun propellant/ratio of length to diameter/end plane plugging/combustion characteristics/interior ballistic performance分类
社会科学引用本文复制引用
贾永杰,杨建兴,石先锐,崔鹏腾..一种新型大弧厚六翼星孔棒状发射药的燃烧特性[J].含能材料,2017,25(9):722-725,4.
