弹道学报2025，Vol.37Issue(2)：105-111,7.DOI:10.12115/ddxb.2024.06001
埋头弹两级点火内弹道性能研究
Study of Two-stage Ignition Internal Ballistic Performance in Cased Telescoped Ammunition
常人九 1薛晓春 1余永刚 1刘毅 2闫光虎2
作者信息
- 1. 南京理工大学 能源与动力工程学院,江苏 南京 210094
- 2. 西安近代化学研究所,陕西 西安 710065
- 折叠
摘要
Abstract
Cased telescoped ammunition(CTA)is a novel type of ammunition which adopts a two-stage ignition combustion technology.The first-stage ignition provides the projectile with a certain initial velocity along the guiding barrel in the barrel,impacting the slope of chamber.While the second-stage ignition generates propellant gas to drive the projectile out of the barrel at high speed.To deeply study the internal ballistic characteristics of the two-stage ignition combustion technology in CTA,a 40 mm short barrel experimental platform was designed and constructed.High-speed video recording and a pressure sensor were utilized to measure the impacting velocity and pressure of the sloped of chamber during the test.The test results show that the projectile impacts the sloped of chamber with a velocity of 22 m/s after the first-stage ignition and stop at the sloped of chamber.Then,the projectile flies out of the barrel quickly after the two-stage ignition is activated.Additionally,a zero-dimensional internal ballistic numerical model of the two-stage ignition of the CTA under the test conditions was established to simulate the two-stage ignition process of the CTA under identical loading conditions.Comparative analysis between numerical simulations and experimental data validated the accuracy of the proposed model.The internal ballistic performance of the 40 mm armor-piercing projectile of CTA was simulated to analyze the effects of different loading charges on the projectile movement process.This study provides a reference for the subsequent research on the two-stage ignition technology of the CTA.关键词
埋头式弹药/两级点火/内弹道/数值模拟Key words
cased telescoped ammunition/two-stage ignition/internal ballistics/numerical simulation分类
军事科技引用本文复制引用
常人九,薛晓春,余永刚,刘毅,闫光虎..埋头弹两级点火内弹道性能研究[J].弹道学报,2025,37(2):105-111,7.
