摘要
无工质微波推进属于新概念,具有无烧蚀、性能不受环境影响、推力功耗比宽的特点。文章从普朗克能量子假说和爱因斯坦的光量子理论出发并结合微波理论给出了该装置的推进机理,又从经典电动力学理论出发解释了推力产生的机理。采用有限元数值求解方法对圆台型推力器腔体内的Maxwell电磁方程组进行了数值模拟,获得了模态和1 000 W功率下腔体内的电磁场分布,并分析了不同模态、不同腔体结构下的具体特征。结果表明,在TE011、TE012、TE111和TM0114个模态中,TE012模品质因数和推力最大,其次是TE011针对1 000 W微波功率输入,以黄铜为腔体材料,基于经典电动力学理论计算出TE011和TE012模产生的最大理论推力值分别为411mN和456 mN。
Aim.The introduction of the full paper reviews Refs.1 and 2 and points out that we find that the method of Ref.2,authored by Qiu Xiaoming et al and originally used on a completely different research project,is very effective for performing our performance calculations,which we explain in sections 1,2 and 3.Section 1 briefs Ref.1,whose only author,Roger Shawyer,proposed a theory of microwave propulsion of spacecraft.Sections 2 and 3 explain how we apply Ref.2＇s method;their core consists of：（1） with the finite element method,we simulate the Maxwell＇s field equations for the microwave radiation thruster in the round-table cavity;（2） we acquire the resonant modes of the round-table cavity and the electromagnetic fields of 1000W inside the round-table cavity;（3） we analyze the characteristics of the microwave radiation thruster of different cavity structures and at different resonant modes;（4） the simulation results,presented in Tables 1 and 2,and their analysis show preliminarily that：（1） the quality factor and thrust at TE012 mode are the largest;（2） for the incident microwave of 1000W and 2.45GHz,with copper as the thruster＇s material,the largest theoretical thrust based on the classical theory of electrodynamics is 411 and 456mN respectively at TE011 and TE012 modes.
出处
《西北工业大学学报》
EI
CAS
CSCD
北大核心
2010年第6期807-813,共7页
Journal of Northwestern Polytechnical University
基金
国家自然科学基金(90716019)资助
关键词
空间飞行器推进
电推进
微波辐射推力器
spacecraft propulsion
electric propulsion
electrodynamics
microwave radiation thruster
