固体火箭技术2017，Vol.40Issue(3)：313-318,6.DOI:10.7673/j.issn.1006⁃2793.2017.03.008
电控固体推进剂点火技术研究
Experimental investigation of electrically stimulated ignition characteristics of electric solid propellant
王新强 1邓康清 1李洪旭 1余小波 1王鹍鹏 1杨育文 1朱雯娟1
作者信息
- 1. 湖北航天化学技术研究所,襄阳 441003
- 折叠
摘要
Abstract
Electric Solid Propellants (ESP)are capable of multiple ignitions, extinguishments and throttle control by the appli-cation of electrical power. When an ESP is fitted with electrodes and the required voltage are applied, the solid propellant was igni-ted and continues to burn until the voltage is removed, causing extinguishment. In this work, we developed an end-burner with lay-ered electrodes to investigate the ignition characteristics of electric solid propellants at ambient pressure. Testing results indicated that electrode material, current density, electrode polarity are the mainly factors that influence the ignition characters of ESP. The ignition preferentially occurs on the active surface of metal electrode. The initial ignition of ESP was taken place on the surface with larger current density using the same electrode material. The flame becomes more observable as the applied voltage increases. The ESP is preferentially ignited at the anode when the contact area ratio of the two electrodes to the ESP grain is 1 : 1 and 0.64 : 1, but when the contact area ratio of two electrodes to ESP grain is 0.16 : 1, ESP could be ignited on the surface with higher current density.关键词
电控固体推进剂/点火/电极/电流密度Key words
electric solid propellant/ignition/electrode/current density分类
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王新强,邓康清,李洪旭,余小波,王鹍鹏,杨育文,朱雯娟..电控固体推进剂点火技术研究[J].固体火箭技术,2017,40(3):313-318,6.
