SPACECRAFT PITCH AND ROLLIYAW ACTUATIONS USING CONTROL MOMENT GYROSCOPES FOR ATTITUDE STABILIZATION

Authors

  • Baizura Bohari Department of Aerospace Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor.
  • Lailatul Nadia Mohamad Ismail Department of Aerospace Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor.
  • Renuganth Varatharajoo Department of Aerospace Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor.

Keywords:

Pultruded composites, crashworthiness, energy absorption, collapse mod, progressive collapse

Abstract

This paper investigates the pitch and roll/yaw actuation using control moment
gyroscopes (CMGs) fo r spacecraft, i.e., International Space Station (ISS). CMGs
act as a control hardware for an active stabilization technique in order to keep the
spacecraft attitude within a desired orientation at all time with a good pointing
accuracy. In this regards, the critical aerodynamic disturbance torques acting on
a spacecraft can be suppressed and without employ ing attitude thrusters. The
analysis starts with a study ofthe spacecraft dynamics and behavior based on the
Euler linearized equations ofmotion. Then, the imp lementation of the pitch and
roll/yaw control architectures using those equations are carried out.
Subsequently, the control algorithms are tested using the MATLAB® and
Simulink®. It is shown that via tuning the control gain values, the pointing errors
can be minimized. The responses of the attitude control obtained .from the
fee dback system show that good pointing accuracies can be accomplished with
dedicated attitude controllers.

References

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Wertz, J.R., 1995. Spacecrqft Attitude Determination and Control, Kluwer Academic Publisher, 73.

Wie, B., 1998. Space Vehicle Dynamics and Control, AIAA Education Series.

Kaplan, J.M., 1976. Model Spacecraft Dynamics & Control, John Wiley & Sons, New York, USA.

MATLAB®and Simulink'[ System, 2003. Mathworks, USA.

Nise, Norman, S., 2004. Control System Engineering, 4th Edition, John Wiley & Sons (Asia) Pte . Ltd., Singapore.

Sidi, M.J., 1997. Spacecraft Dynamics and Control, Cambridge University Press, UK.

Wie, B., Byun, K.W. , Warren, Y.W., Geller, D., Long, D. and Sunkel, J., 1988. New approach to attitude/momentum control for the space station, Journal ofGuidance, Navigation and Control, 12, (5), 714-722.

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Published

2018-04-17

How to Cite

Bohari, B., Mohamad Ismail, L. N., & Varatharajoo, R. (2018). SPACECRAFT PITCH AND ROLLIYAW ACTUATIONS USING CONTROL MOMENT GYROSCOPES FOR ATTITUDE STABILIZATION. Jurnal Mekanikal, 23(1). Retrieved from https://jurnalmekanikal.utm.my/index.php/jurnalmekanikal/article/view/164

Issue

Section

Mechanical

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