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

The Korean Society for Aviation and Aeronautics (한국항공운항학회)
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Design of Path Tracking Controller Based on Thrusters for the Lunar Lander Demonstrator

달 착륙선 지상시험모델의 경로 추종을 위한 추력기 기반 제어기 설계

  • 김광진 (한국항공대학교 대학원 항공우주 및 기계공학과) ;
  • 이정숙 (한국항공대학교 대학원 항공우주 및 기계공학과) ;
  • 이상철 (한국항공대학교 항공우주 및 기계공학부) ;
  • 고상호 (한국항공대학교 항공우주 및 기계공학부) ;
  • 류동영 (한국항공우주연구원) ;
  • 주광혁 (한국항공우주연구원)
  • Received : 2011.12.02
  • Accepted : 2011.12.21
  • Published : 2011.12.31
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Abstract

Lunar exploration program has been prepared with the aim of launch in the 2020's. As part of it, a lunar lander demonstrator has been developed which is the model for verifying all the system, such as structure, propulsion and control system before launch to deep space. After verifying all the system, the demonstrator will be evaluated by flight test. This paper deals with path tracking controller based on thrusters for the demonstrator. For this, first we derive equations of motion according to the allocation of thrusters and design the path tracking controller. The signal generated from the controller is continuous so PWPF(Pulse-Width Pulse-Frequency) modulator is adopted for generating on/off signal. Finally MATLAB simulation is performed for evaluating the path tracking ability and the final landing velocity.

Keywords

References

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Cited by

  1. 달 착륙선의 동역학 모델링 및 추력기 기반 제어기 설계 vol.23, pp.1, 2015, https://doi.org/10.12985/ksaa.2015.23.1.049