Exploration of the Maximum Entropy/Optimal Projection Approach to Control Design Synthesis for Large Space Structures.

Abstract

Increased interest in deploying large flexible spacecraft has focused attention on active structural control techniques to achieve crucial advances in vibration suppression, pointing accuracy and shape control. The extreme complexity of such systems, and the lack of accurate finite-element structural models present severe control-design challenges which were extensively documented by previous Government research Programs. Optimal Projection/Maximum Entropy Stochastic Modelling and Reduced-Order Design Synthesis is a rigorous new approach to this class of problems. Inspired by Statistical Energy Analysis, a branch of dynamic modal analysis developed for analyzing acoustic vibration problems, its present stage of development embodies a fundamental generalization of classical steady-state Kalman filter and linear-quadratic-Gaussian optimal control theory. Keywords: Stochastic processes; Parameter uncertainty; Maximum entropy formalism; Quadratic Optimization; Reduced-order dynamic compensation.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1985
Accession Number
ADA161355

Entities

People

  • David C. Hyland
  • Dennis S. Bernstein

Organizations

  • Harris Corporation

Tags

Communities of Interest

  • Cyber
  • Sensors
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Algorithms
  • Closed Loop Systems
  • Computational Fluid Dynamics
  • Computational Science
  • Control Systems
  • Differential Equations
  • Estimators
  • Functional Analysis
  • Kalman Filters
  • Mathematical Filters
  • Partial Differential Equations
  • Probabilistic Models
  • Probability
  • Probability Distributions
  • Random Variables
  • Statistical Algorithms
  • Stochastic Processes

Fields of Study

  • Engineering

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Structural Dynamics.
  • Systems Analysis and Design

Technology Areas

  • Space
  • Space - Spacecraft Maneuvers