ACOSS-11 (Active Control of Space Structures). Volume II

Abstract

Volume 2 of this report describes progress in the application of active controller design methods to the ACOSS Model No. 2 structure. Attention is focused on attenuation of the effects of a broad-band disturbance input upon line-of-sight rotation error, and upon the generation of smooth large-angle slew maneuvers. A ten-mode design model is used. For disturbance attenuation, a new method for sensor/actuator selection based directly on line-of-sight considerations is proposed. Three disturbance-attenuation designs are described. The first assumes a complete knowledge of the disturbance statistics, while the others assume no such explicit knowledge. All three designs indicate convincingly that damping augmentation alone is not sufficient to attenuate effects of the disturbance; augmentation of stiffness is also required. Extensions of large-angle slew control to incorporate feedback are also presented.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1982
Accession Number
ADA124746

Entities

People

  • Daniel R. Hegg
  • Eliezer Fogel
  • James D Turner
  • Jiguan G. Lin
  • Robert R. Strunce

Organizations

  • Charles Stark Draper Laboratory

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Closed Loop Systems
  • Computational Science
  • Contracts
  • Control Systems
  • Department Of Defense
  • Differential Equations
  • Eigenvalues
  • Equations
  • Estimators
  • Frequency
  • Frequency Response
  • Kalman Filters
  • Line Of Sight
  • Mathematical Filters
  • Plastic Explosives
  • Resonant Frequency
  • Riccati Equation

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Robotics and Automation.
  • Theoretical Analysis.

Technology Areas

  • Space
  • Space - Spacecraft Maneuvers