금속 프린팅을 활용한 초소형위성 구조체 설계 및 해석

Abstract

Recently, 3D printing has been steadily growing in related technologies and markets because it has the advantage ofmaking lighter and more complex products. Moreover, 3D printing of metallic materials has been commercializedwith increasing number of applications in aerospace. This study presents the design of a 2U nanosatellite having analuminum 3D printed structure and its structural analysis results at the launch environment. The volume and weightof the target model followed CubeSat's 2U standard, and the material used was AlSi10Mg. Based on this, static loadanalysis and modal analysis were performed on the structure using finite element analysis according to the launchenvironment standards required by GSFC-STD-7000. As a result of the analysis, it was confirmed that the 3D-printedframe is structurally safe in all cases, and it could sufficiently replace the general structural frame similar to theAl6000 and Al7000 series materials produced by the machining process.