Journal of the Korean Society for Aviation and Aeronautics (한국항공운항학회지)

The Korean Society for Aviation and Aeronautics (한국항공운항학회)
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A Study on Dynamic Modelling and Mass Properties Estimation of the Lunar Module

달 탐사선의 동역학 모델링 및 관성 모멘트 추정에 관한 연구

  • 심상현 (한국항공대학교 대학원 항공우주 및 기계공학과) ;
  • 김광진 (한국항공대학교 대학원 항공우주 및 기계공학과) ;
  • 이상철 (한국항공대학교 항공우주 및 기계공학부) ;
  • 고상호 (한국항공대학교 항공우주 및 기계공학부) ;
  • 류동영 (한국항공우주연구원) ;
  • 주광혁 (한국항공우주연구원)
  • Received : 2010.11.14
  • Accepted : 2010.12.26
  • Published : 2010.12.31
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Abstract

This paper deals with attitude determination and parameter estimation problems for a lunar module. For this we first derive equations of motion for the lunar module by considering allocation locations (configurations) of reaction thruster and a reaction wheel assembly. The lunar module is assumed as a rigid body. In order to include the effect of fuel sloshing on the dynamics of the lunar module, we model it as a spherical pendulum for a simple analysis. For estimating angular rates and moment of inertia of the module, we employ an extended Kalman filter and the least mean square algorithms, respectively. Finally we construct a dynamical model for the lunar module by combining all these elements.

Keywords

References

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