Comparative study of MYSat attitude stability effect on power generation and lifetime

International Conference on Aerospace and Mechanical Engineering 2017

航空航天工程;机械制造

Ismail, Norilmi Amilia^1 ; Thaheer, Ahmad Shaqeer Mohamed^1 ; Yamin, Mohd. Izmir^2

School of Aerospace Engineering, Universiti Sains Malaysia, Engineering Campus, Nibong Tebal, Pulau Pinang, Malaysia^1

Independence-X Aerospace Sdn. Bhd., Innovation Incubation Centre, Technology Park Malaysia, Kuala Lumpur, Malaysia^2

关键词: Analytical graphics;    Attitude stability;    Comparative studies;    Mission lifetime;    Satellite mission;    SPACE system;    Theoretical efficiencies;    Ultra triple junctions;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/370/1/012018/pdf
DOI  :  10.1088/1757-899X/370/1/012018

学科分类：航空航天科学

来源: IOP

【 摘 要 】

Universiti Sains Malaysia Space System Lab (USSL) is currently developing a 1U cubesat named MYSat. The satellite mission is to measure electron-density in the Ionosphere E-Layer. Power generation from a solar panel is limited due to a small area of the satellite. Apart from that, the satellite is expecting to continuously spinning and tumbling throughout the mission lifetime as the satellite will be launched without an attitude control system. This paper compares the effect on power generation and the lifetime of MYSat of two conditions; first is with attitude controll where satellite pointing to nadir and later is uncontrol attitude of the satellite. The analysis has been conducted using Analytical Graphics, Inc. (AGI) Systems Tool Kit (STK) software. This study assumed the satellite used a hexagonal solar cell with a theoretical efficiency of 29% identical to an Ultra Triple-Junction (UTJ) solar cell. The simulation is done in one year duration on different attitude configuration. The worst-case condition, where the Earth is positioned at apogee, has been chosen for the comparative study and the lifetime of the satellite is also simulated and compared.