Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지

Torque and Force Measurement of a Prototype HAU Reaction Wheel and the Effect of Disturbance on the Attitude Stability of Spacecraft

  • Published : 2001.06.01
Download PDF
⟨ Previous Next ⟩

Abstract

A Prototype reaction wheel, named the Hankuk Aviation University (HAU) reaction wheel, has been developed for KAISTSAT satellite series. Torque and force disturbances are inherent in reaction wheels, and thus the force and torque characteristics should be examined for every newly developed reaction wheel. The torque and force disturbance noises in the prototype HAU reaction wheel are measured with a torque-measuring table developed for the present study. A new measuring procedure based on a simple principle is applied for the measurements. The frequency characteristics of the torque and force noises are analyzed by examining the power spectral density. The effect of the torque noise on the attitude stability is also examined through numerical simulations with a single-axis attitude model. The noise-induced attitude error and jitter and found to be well below the specified error limits for the KAISTSAT satellite series.

Keywords

References

  1. Bosgra, J. A., and Prins, J. J. M., 1982, 'Testing and Investigations of Reaction Wheels,' IFAC Automatic Control in Space, Noordwijkerhout, The Netherlands
  2. Doebelin, E. O., 1990, Measurement System, McGraw- Hill Publishing Company
  3. Kim, B.-J., Seon, K.-I. and Tahk, M.-J., 1999, 'Orbit and Attitude Control Requirement Analysis of KAISTSAT-4,' Journal of KSAS, Vol. 26, No.4
  4. Kim, J.-Y., Yoon, E.-J., Chang, S.-J., Kim, D.-Y., and Jeong, W.-B., 1996, 'A Study on the Determination of Optimal Reference Spectrum for Random Vibration Control in Environmental Vibration Test,' KSME Journal, Vol. 10, No. 2
  5. Kwon, J.-W., Lee, B.-W., Lim, Y.-S. and Oh, H.-S., 2000, 'Development of a Prototype HAD Reaction Wheel,' The Millennium Conference on Air and Space Science, Technology and Industry in Commemoration of HAU's 48th Anniversary, Hankuk Aviation University, Koyang, Korea, pp. 261-270
  6. Oh, H.-S. and Kwon, J.-W., 2000, 'Development of Three Dimensional Hardware-in-the-Loop Satellite Simulator,' The Millennium Conference on Air and Space Science, Technology and Industry in Commemoration of HAU's 48th Anniversary, Hankuk Aviation University, Koyang, Korea, pp. 298-314
  7. Oh, H.-S., 1999, 'Dynamic Torque Measuring Device,' Patent Pending No. 10-1999-0028789
  8. Sidi, M. J., 1997, Spacecraft Dynamics and Control, Cambridge University Press, pp. 393-401
  9. Wertz, J. R., 1978, Spacecraft Attitude Determination and Control, D. Reidel Publishing Company, pp. 201-203
  10. Oliver de Week, 1998, 'Reaction Wheel Disturbance Analysis,' Memorandum MIT-SSL-NGST-98-1, MIT, Cambridge