Vibration Suppression in Large Flexible Space Structures Using Active Control Techniques

Abstract

This report investigates the use of active vibration control techniques applied to the PACOSS Dynamic Test Article as an experimental structure. In the course of the research, a mathematical model of the lightly damped experimental structure was created based on experimental data. This model was used in the design of two classes of controllers. The first class is pure rate feedback of the structure's measured states such that global stability is insured. The second type of controller investigated was an optimal controller (LQG) that was created using the truncated mathematical model. The rate feedback controller showed significant improvements in the damping of the structures flexible modes. The optimal controller proved to be stable only for negligible gains and did not improve structural damping significantly.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1992
Accession Number
ADA258916

Entities

People

  • Chad T. Matheson

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Closed Loop Systems
  • Control Systems
  • Dynamic Tests
  • Engineering
  • Experimental Data
  • Feedback
  • Frequency Response
  • Mathematical Filters
  • Mathematical Models
  • Measurement
  • Multiple Input Multiple Output
  • Resonant Frequency
  • Solar Panels
  • Space Systems
  • Spacecraft
  • Standards

Readers

  • Computational Modeling and Simulation
  • Robotics and Automation.
  • Structural Dynamics.

Technology Areas

  • Space
  • Space - Spacecraft Maneuvers