高压物理学报2025，Vol.39Issue(2)：74-81,8.DOI:10.11858/gywlxb.20240847
有限空间内桥丝式电点火元件的发火特性
Ignition Characteristic of Bridgewire Electric Ignition Element in Limited Space
摘要
Abstract
As a common ignition element,the ignition characteristic in limited space of a bridgewire electric ignition element(EIE)is the internal embodiment of its precision and reliability as an explosion-transfer sequence.The limited space environment of bridgewire electric fusehead ignition is simulated by preparing test samples and the test system of the ignition parameter is designed to test the time structure of the ignition process,the gas pressure,ignition light intensity and other parameters in limited space;using the high-speed camera to test the dynamic ignition process of the EIE,a physical model of ignition in the limited space of EIE is established.The research shows that with the increase of the ignition voltage,the phase transition time of the bridgewire is shortened,the duration of the plasma stage increases,and then tends to stabilize.The ignition time of the electric fusehead fluctuates at about 5.6 ms,and the ignition pressure time and the ignition light intensity time are maintained in the 3.0-5.0 ms range.After the ignition voltage reaches 20 V,the ignition characteristic parameters tend to be stable,and it can reliably output uniform ignition energy for igniting the next sequence of charging.In the limited space of the air chamber,the dynamic process of EIE can be divided into four stages:bridgewire heating up and heating fusehead agent,fusehead agent ignition,heat flow diffusion and shock wave reflection.关键词
有限空间/电点火元件/发火压力/点火电压Key words
limited space/electric ignition element/ignition pressure/ignition voltage分类
数理科学引用本文复制引用
韩体飞,姜鑫,朱延钰,王猛,刘赛,陈凯强,侯博文..有限空间内桥丝式电点火元件的发火特性[J].高压物理学报,2025,39(2):74-81,8.基金项目
国家自然科学基金(51604009) （51604009）
安徽理工大学国家级大学生创新训练项目(202310361049) （202310361049）
安徽理工大学2023年研究生创新基金(2023cx2117) （2023cx2117）
