상세정보
학술지
Mitigation Method of Spacecraft Momentum by Solar Radiation Pressure
- 발행일
- 200905
- 출처
- Journal of Spacecraft and Rockets, v.46 no.3, pp.716-719
- ISSN
- 0022-4650
- 출판사
- American Institute of Aeronautics and Astronautics Inc. (AIAA)
- 협약과제
- 07MR1100, 통신해양기상위성 개발, 이성팔
- 초록
- Methods for reducing spacecraft momentum dumping using radiation pressure and mass-center portion management are presented. Relocation of mass center of the spacecraft by mounting a propellant blowdown propellant tank can reduce the momentum dumping. In this method the mass center of the spacecraft is moved to the propellant blowdown direction as propellant is consumed during its lifetime. The effectiveness of this method is improved when satellite consumes the propellant because of increment of its moment arm. Orthogonal positioning of the solar array to the sun direction can minimized solar radiation disturbance torque. This method is dependent on the battery's capacity and the satellite's power consumption. Solar Array offset angle control method is complicated and can save propellant for the momentum dumping process. The proposed method also reduce propellant consumption and extends satellite lifetime.
- KSP 제안 키워드
- Offset angle, Power Consumption, Propellant tank, Solar Radiation Pressure, angle control, control method, disturbance torque, mass center, mitigation method, moment arm, solar array