Reduced Order Modeling for Aero-Elastic Simulations

Abstract

Control of systems described by large-order models typically requires construction and use of reduced order models (ROM's) for the purpose of feedback controller design and implementation. However, controllers based on these ROM's can have deleterious interactions with un-modeled modes, and some sort of stability compensation is needed, such as Residual Mode Filters (RMF's). In this report we summarize our work on exponential closed loop stability using RMF's for Aero-Elastic Simulations. This can be achieved for systems with actuator dynamics, as well as for controllern designed only using a ROM of the actuator. Our applications include the control of fluid-structure interaction in a simple piston model and a three dimensional NACA wing to alleviate aero-elastic flutter.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 2006
Accession Number
ADA458303

Entities

People

  • Mark Balas

Organizations

  • University of Wyoming

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Actuators
  • Algorithms
  • Compensation
  • Computational Fluid Dynamics
  • Computational Science
  • Control Systems
  • Department Of Defense
  • Dynamics
  • Equations
  • Estimators
  • Feedback
  • Filters
  • Models
  • Residuals
  • Simulations
  • Students
  • Truncation

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Control Systems Engineering.
  • Robotics and Automation.