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A Study on Dynamic Modelling and Mass Properties Estimation of the Lunar Module  

Shim, Sang-Hyun (한국항공대학교 대학원 항공우주 및 기계공학과)
Kim, Kwang-Jin (한국항공대학교 대학원 항공우주 및 기계공학과)
Lee, Sang-Chul (한국항공대학교 항공우주 및 기계공학부)
Ko, Sang-Ho (한국항공대학교 항공우주 및 기계공학부)
Rhyu, Dong-Young (한국항공우주연구원)
Ju, Gwang-Hyeok (한국항공우주연구원)
Publication Information
Journal of the Korean Society for Aviation and Aeronautics / v.18, no.4, 2010 , pp. 30-37 More about this Journal
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
Lunar Module; Sloshing; Reaction Wheel; Reaction Thruster; Moment of Inertia; Extended Kalman Filter; Least Mean Square;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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