LEO Complex Space Environment Experiment Interpretation About COTS Resistor, GFRP, and PCB

Abstract The purposes of this study are to establish facility which contains a low Earth orbit (LEO) complex environmental simulation chamber and a geostationary orbit (GEO) spacecraft charging chamber, to demonstrate its feasibility and to analyze how much passive elements, glass fiber-reinforced polymer (GFRP), and printed circuit board (PCB) are affected based on this facility. The research method used is to numerically record and compare the space environment factors and each parameter that can be simulated in the experimental device before and after the experiment. The results of the study are as follows. First, 11 of the 20 resistor elements became unusable within hours due to resistance values which is performance of resistors going out of tolerance. Second, before and after the experiment, the physical properties of GFRP and PCB for mass loss and vapor mass gain were compared and analyzed. And in the case of PCB materials, mechanical properties, such as strength and stiffness, were compared and analyzed. Through this, quantitative values were obtained for the degree of impact of the space environment, and these data are thought to be used as basic data for protective or mechanical structure design when using each material and component for satellites.