Reduced Order Model Based Feedback Control of Large-Scale Aeroelastic Simulations: Residual State Filter Model Reduction Compensation and Application to F-16 Dynamic Models

Abstract

Control of large-scale, aero-elastic models requires advanced model reduction techniques for implementation of feedback control. New reduced order model techniques must be developed based on the concepts and physics of fluid-structure interaction. Current methods are inefficient and inaccurate when dealing with these large scale aero-elastic models. Reduced order model (ROM) based controllers may produce adverse affects on un-modeled modes causing instability in the system. The idea of compensation is introduced to correct for this problem. The primary goal of this paper is to explore three separate techniques for developing ROM based feedback controllers to aero-elastic systems. They are the following: modal truncation with residual mode filter (RMF) compensation, Schur form with residual state filter (RSF) compensation and the singular perturbation approach.

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Document Details

Document Type
Technical Report
Publication Date
Jan 23, 2008
Accession Number
ADA476664

Entities

People

  • Casey Fagley
  • Mark J. Balas

Organizations

  • University of Wyoming

Tags

Communities of Interest

  • Air Platforms
  • Sensors

DTIC Thesaurus Topics

  • Aircrafts
  • Algorithms
  • Closed Loop Systems
  • Compensation
  • Computational Fluid Dynamics
  • Computational Science
  • Contracts
  • Control Systems
  • Department Of Defense
  • Differential Equations
  • Eigenvalues
  • Estimators
  • Feedback
  • Fluid Dynamics
  • Fluid Flow
  • Plastic Explosives
  • Simulations

Fields of Study

  • Physics

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Computational Fluid Dynamics (CFD)
  • Robotics and Automation.