含能材料2017，Vol.25Issue(11)：925-931,7.DOI:10.11943/j.issn.1006-9941.2017.11.007
基于药柱变燃速燃烧的底排减阻增程方法
Method of Drag Reduction and Extend Range Based on Variable Burning Rate of Base Bleed Propellant
摘要
Abstract
In order to research the drag reduction and extend range characteristics of base bleed projectile,the three burning models were established for base bleed propellant with different burning rate,cladding propellant with variable burning rate and different cladding layer position of propellant for 155 mm base bleed projectile.The drag reduction and extend range characteristics of base bleed projectile were calculated and analyzed numerically by introducing the burning rate change coefficient.Results show that the burning rate change coefficient increases from 0.7 to 1.2,the working time of the base bleed reduces 27.08 s,the firing range reduces 1.16 km and the extend range rate increases 3.86％.The extend range rate is 32.33％ by using the variable burning rate propellant,which the inner layer burning rate is higher than outer layer.The maximum firing range is 39.76 km by optimizing the propellant at 1/4 of the inner ring.Therefore,the drag reduction and extend range characteristics of base bleed projectile could be improved by optimizing the layer position and using variable burning rate of base bleed propellant.关键词
底部排气弹/底排药柱/可变燃速/减阻/增程Key words
base bleed projectile/base bleed propellant/variable burning rate/reduction drag/extend range分类
军事科技引用本文复制引用
张竹伟,张领科..基于药柱变燃速燃烧的底排减阻增程方法[J].含能材料,2017,25(11):925-931,7.基金项目
国家自然科学基金资助(51106075) （51106075）
