Control of Large Flexible Systems by Spatial Modal Input-Distribution Control.

Abstract

A common problem in controlling a large flexible structure with a reduced order model is the excitation of the residual (non-modelled) modes by the control inputs resulting in control spillover. In this thesis a new approach to eliminate control spillover is examined. This approach, based on the independent modal-space control method, uses a finite number of spatially distributed input points to eliminate control spillover. Control of an undamped beam and a finite degree of freedom truss is accomplished through computer simulation. The results of the seven example problems shows that this new approach does effectively eliminate control spillover. Keywords: Closed loop eigenvalues; Model displacement. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1985
Accession Number
ADA166912

Entities

People

  • Craig V. Bendorf

Organizations

  • Air Force Institute of Technology

Tags

DTIC Thesaurus Topics

  • Closed Loop Systems
  • Computational Science
  • Computer Simulations
  • Computers
  • Control Systems
  • Differential Equations
  • Dynamics
  • Eigenvalues
  • Eigenvectors
  • Equations
  • Excitation
  • Flexible Structures
  • Mathematical Models
  • Open Loop Systems
  • Partial Differential Equations
  • Simulations
  • Spacecraft

Readers

  • Robotics and Automation.
  • Structural Dynamics.

Technology Areas

  • Space
  • Space - Spacecraft Maneuvers