Modeling XV-15 Tilt-Rotor Aircraft Dynamics by Frequency and Time-Domain Identification Techniques.

Abstract

Models of the open-loop hover dynamics of the XV-15 Tilt-Rotor Aircraft are extracted from flight data using two approaches: frequency-domain and time-domain identification. Both approaches are reviewed and the identification results are presented and compared in detail. The extracted models compare favorably, with the differences associated mostly with the inherent weighting of each technique. Step responses are used to show that the predictive capability of the models from both techniques is excellent. Based on the results of this study, the relative strengths and weaknesses of the frequency and time-domain techniques are summarized, and a proposal for a coordinated parameter identification approach is presented. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Oct 16, 1986
Accession Number
ADA178885

Entities

People

  • Juergen Kaletka
  • Mark B. Tischler

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Accuracy
  • Aircrafts
  • Airframes
  • Computational Science
  • Control Systems
  • Databases
  • Differential Equations
  • Frequency
  • Frequency Domain
  • Frequency Response
  • Reliability
  • Rotary Wing Aircraft
  • Standards
  • Test And Evaluation
  • Tilt Rotor Aircraft
  • Time Domain
  • Transfer Functions

Readers

  • Business Analytics
  • Computational Fluid Dynamics (CFD)
  • Control Systems Engineering.