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김진철(Kim Zeen-Chul),김한돌(Kim Han-Dol),용상순(Yong Sang-Sun) 대한전자공학회 1992 대한전자공학회 학술대회 Vol.1992 No.10
This paper describes satellites' three main stabilization techniques namely gravity gradient method, spin stabilization method and three-axis stabilization method. In conjunction with the methods, dynamic modelling and simulation was performed to characterize the pointing performance of each method. The trade-off between the methods was also compared in the sense of accuracy and complexity.
효율적인 다물체 동역학 해법 및 인공위성 전개장치에의 응용
이기수(Kisu Lee),김진철(Zeen Chul Kim) 대한전자공학회 1992 대한전자공학회 학술대회 Vol.1992 No.10
Solar arrays and antennas of the satellite are usually stowed within the dimensions of the launch-vehicle fairing and deployed in the orbit. To solve such multibody dynamic problems, differential equations and algebraic equations are simultaneously solved, and special solution techniques are required. In this paper, Lagrange multipliers associated with the constraints are iteratively computed by monotonically reducing an appropriately defined constraint error vector, and the resulting equation of motion is solved by a well-established ODE technique. Deformable bodies as well as rigid bodies are treated, and applications to satellite solar arrays are explained.