Approximation Methods for the Identification and Control of Distributed Parameter Systems.

Abstract

Efforts to develop computational methods for the identification and optimal control of linear and nonlinear systems governed by distributed parameter systems are reported on. Specifically, approximation methods for determining Optimal LOG compensators (feedback control and estimator gains) and functional parameters in linear and nonlinear partial differential equations and hereditary systems were developed, analyzed and tested. The study included theoretical, experimental and numerical components. Covergence theories for spline-based and modal finite element schemes were established and extensive numerical studies on both conventional (serial) and vector supercomputers were carried out. A parameter estimation scheme was tested using experimental data taken from the RPL structure, a laboratory experiment designed to test control algorithms for the large angle slewing of spacecraft with flexible appendages, and other projects involving the identification of flexible structures based upon experimental data were initiated.

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Document Details

Document Type
Technical Report
Publication Date
Nov 20, 1987
Accession Number
ADA190201

Entities

People

  • I. G. Rosen

Organizations

  • University of Southern California

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Algorithms
  • Applied Mathematics
  • Closed Loop Systems
  • Composite Materials
  • Computational Fluid Dynamics
  • Computational Science
  • Computers
  • Control Systems
  • Difference Equations
  • Differential Equations
  • Information Science
  • Mechanics
  • Partial Differential Equations
  • Spacecraft
  • Statistical Analysis
  • Two Dimensional

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Robotics and Automation.

Technology Areas

  • Space
  • Space - Spacecraft Maneuvers