Control of Large-Order Space Structures

Abstract

Work during this period had been concerned with: 1) optimal maneuvering of flexible spacecraft and 2) control of damped distributed structures. The problem of simultaneous maneuvering and vibration control is solved by means of a perturbation approach. The control policy for the perturbations involves the solution of a time-varying linear regulator problem capable of accommodating persistent disturbances. Control of self-adjoint (undamped) distributed structures can be carried out conveniently by modal control. Nonproportional damping tends to destroy the self-adjointness of the system, so that modal control is not as convenient as for undamped structures. If damping is relatively small, however, it is possible to base the control design on the self-adjoint system and still obtain satisfactory control performance.

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Document Details

Document Type
Technical Report
Publication Date
Dec 21, 1987
Accession Number
ADA214012

Entities

People

  • Leonard Meirovitch

Organizations

  • Virginia Tech

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Classification
  • Closed Loop Systems
  • Control Systems
  • Differential Equations
  • Eigenvalues
  • Eigenvectors
  • Equations
  • Equations Of Motion
  • Equations Of State
  • Feedback
  • Frequency
  • Nonlinear Differential Equations
  • Partial Differential Equations
  • Regulators
  • Resonant Frequency
  • Spacecraft
  • Vibration

Readers

  • Control Systems Engineering.
  • Linear Algebra
  • Robotics and Automation.

Technology Areas

  • Space
  • Space - Spacecraft Maneuvers