中国空间科学技术2016，Vol.36Issue(1)：9-17,9.DOI:10.3780/j.issn.1000-758X.2016.0005
超声电喷推进机理研究
Study on emission mechanism of ultrasonically electric propulsion
张姚滨 1杭观荣 2董磊 1康小明 1赵万生 1张岩 2康小录2
作者信息
- 1. 上海交通大学 机械与动力工程学院,上海 200240
- 2. 上海空间推进研究所,上海 201112
- 折叠
摘要
Abstract
To improve the thrust of colloid thrusters by increasing the number of emitters,a novel electric propulsion method named ultrasonically electric propulsion (UEP)was proposed.The dense capillary standing waves produced by ultrasonic vibration are the emitters,so the number and density of emitters are improved fundamentally and relatively high thrust density appears.The emission mechanism of UEP was analyzed and the corresponding emission model was developed. Through theoretical analysis on the formation of capillary standing waves and the emission of the charged droplets,the relationship among the surface tension,inertial force and electrostatic force at the crests of standing waves was introduced.Furthermore,the radius of the standing wave crests and the diameter of the charged droplets were theoretically solved. The estimation equations of spray current,specific impulse and thrust were proposed.Based on the theoretical analysis,the influences of the electric filed strength,ultrasonic vibration frequency,ultrasonic vibration power and propellant on the performance of UEP were analyzed and experimentally verified.关键词
超声电喷推进/发射模型/微细驻波/带电液滴/发射机理Key words
ultrasonically electric propulsion (UEP)/emission model/capillary standing waves/charged droplets/emission mechanism分类
航空航天引用本文复制引用
张姚滨,杭观荣,董磊,康小明,赵万生,张岩,康小录..超声电喷推进机理研究[J].中国空间科学技术,2016,36(1):9-17,9.
