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首页> 外文期刊>Applied Computational Electromagnetics Society journal >Shape Optimization of the Momentum Ring Cross Section for Satellite Attitude Control Based on Magnetohydrodynamics
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Shape Optimization of the Momentum Ring Cross Section for Satellite Attitude Control Based on Magnetohydrodynamics

机译：Shape Optimization of the Momentum Ring Cross Section for Satellite Attitude Control Based on Magnetohydrodynamics

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摘要

Compared with the traditional actuator, thefluid momentum controller actuator based on magnetohydrodynamics(MHD) has some unique advantages andcharacteristics. In this paper, a method is proposed forthe shape optimization of fluid momentum ring crosssection. Based on the engineering situation, this articleproposes a mathematical model of angular momentumthat can be used for analytical calculations. Second,the two shapes obtained are unified and mathematicallyexpressed in terms of maximum power and minimumresistance, respectively. Finally, the particle swarm algorithmis used to optimize the parameters of the proposedshape in combination with finite element method (FEM).Compared with the common rectangular section scheme,the attitude adjustment performance of fluid momentumring can be effectively improved. Specifically, for thesame area of cross section, the fluid momentum ringswith the proposed shape provide the angular momentumvalues that exceed those of the rectangular shape by14%-17% for the cases considered. This method avoidsthe huge computation of computational fluid dynamicsand multidisciplinary topology optimization.

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