Three Dimensional Measurements and Parameter Identification of Force and Torque Distmbances of High Speed Rotating Actuators

고속회전구동기의 힘 및 토크 외란 3차원 측정과 파라미터 추정

  • 이현호 (대우조선해양주식회사) ;
  • 오화석 (한국항공대학교 항공우주 및 기계공학부) ;
  • 전동익 (한국항공대학교 대학워 항공우주 및 기계공학과)
  • Published : 2007.04.01


A momentum type actuator produces force and torque disturbances as well as its designed control torque. These disturbances are ones of the largest disturbance sources inside the spacecraft, which deteriorate the pointing stability of the high precision spacecraft. The measurement and analysis of actuator disturbances are therefore imperative for such a spacecraft, and thus a three dimensional torque measurement table has been developed for that purpose. The data acquired from the measurement table are processed in the frequency domain and displayed in the power spectral density(PSD). Through this process, disturbance model parameters are obtained and used for the attitude stability simulation. The process has been adopted for the disturbance measurement of the reaction wheel, and the validity of measurements and parameter identification procedure is verified.


Reaction Wheel;Disturbance;Actuator;Loadcell;Measurement Table


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