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START: A Satellite Three Axis Rotation Testbed.

Giovanni Lavezzi1, Nathan J Stang1, Marco Ciarcià1

  • 1Department of Mechanical Engineering, South Dakota State University, Brookings, SD 57006, USA.

Micromachines
|February 25, 2022
PubMed
Summary
This summary is machine-generated.

This study presents a low-cost satellite attitude simulator testbed for on-ground testing of attitude determination and control. The developed system utilizes a novel suspension method for three degrees-of-freedom rotation, enabling cost-effective satellite attitude control research.

Keywords:
attitudesatellitesimulatortestbed

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Area of Science:

  • Aerospace Engineering
  • Control Systems Engineering
  • Robotics

Background:

  • Satellite attitude determination and control (ADC) are critical for mission success.
  • Existing ADC testbeds often involve high costs, limiting accessibility for research and development.
  • A need exists for affordable, high-fidelity ground simulation tools for ADC methodologies.

Purpose of the Study:

  • To develop and present a novel, low-cost satellite attitude simulator testbed.
  • To enable on-ground experimentation and validation of ADC algorithms.
  • To provide an accessible platform for satellite attitude control research.

Main Methods:

  • A suspended base system using thin, high-tensile strength wires for three degrees-of-freedom rotation.
  • Integration of a single-board processor, reaction wheels, and battery for attitude control actuation.
  • Utilized adjustable hanging points and sliding masses for precise center-of-mass and rotation point superposition.
  • Incorporated a PC workstation for command generation and a motion capture system for attitude determination.

Main Results:

  • Achieved a three degrees-of-freedom rotation range with minimal resistive torque.
  • Demonstrated quasi-neutral equilibrium through accurate superposition of rotation point and center of mass.
  • Successfully developed a functional satellite attitude simulator testbed.
  • Validated the low-cost approach compared to traditional air-bearing systems.

Conclusions:

  • The developed testbed offers a viable, cost-effective solution for satellite ADC research.
  • The novel suspension system provides excellent rotational freedom and minimal friction.
  • This platform facilitates the testing and refinement of advanced attitude determination and control strategies.