MS Thesis Proposal by Su-Yeon Choi

Event Details
  • Date/Time:
    • Friday February 5, 2016
      12:00 pm - 2:00 pm
  • Location: Atlanta, GA
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Summaries

Summary Sentence: Automatic Mass Balancing System of the 5-DOF Spacecraft Simulator

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Committee Members :

Prof. Panagiotis Tsiotras (Advisor)

Prof. Mark Costello

Prof. Marcus J Holzinger

Automatic Mass Balancing System of the 5-DOF Spacecraft Simulator

 

Spacecraft simulators are widely used to validate spacecraft attitude determination and control techniques. A 5-dof experimental facility at the School of Aerospace Engineering at the Georgia Institute of Technology has been developed to create spacelike environment for academic research and education. This facility is composed of two stages: The upper stage has a hemi-spherical air-bearing that allows frictionless rotational motion of the upper stage and the lower stage has three linear air-bearing pads that make it possible to achieve almost friction-free translational motion of the entire system. In this system, the balancing procedure is a crucial issue that will permit gravitational torques to be diminished into the spacecraft simulator. The aim of this study is to introduce an automatic mass balancing method and eliminate the center of gravity oset from the center of rotation by actuating the three sliding masses, without need of further actuators. Adaptive nonlinear feedback control is proposed in this thesis and the stability and the convergence of the parameters are analyzed through Lyapunov stability theory. The proposed controller will be implemented on the experimental platform to verify the balancing technique.

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Graduate Studies

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Master's thesis proposal
Status
  • Created By: Jacquelyn Strickland
  • Workflow Status: Published
  • Created On: Feb 1, 2016 - 9:54am
  • Last Updated: Oct 7, 2016 - 10:16pm