A Study of Folding Proprotor VTOL Aircraft Dynamics. Volume 2. Computer Programs

Abstract

The report describes the results of a study of the dynamic stability and response during the feathering and folding of the blades of a folding-proprotor VTOL. This study involved the development of analytical methods of predicting the dynamic characteristics during feathering and folding correlation of the theoretical methods with experimental data, a dynamic analysis of a representative folding-proprotor VTOL design and a parametric study to identify design factors which can be used to control dynamic characteristics during feathering and folding. Correlation of the theory with measured dynamic stability and response characteristics during feathering and folding is good, and indicates the analytical methods can be used with confidence. The results of the dynamic analysis indicate satisfactory stability and response characteristics can be achieved in a 66,000-pound gross-weight class, folding-proprotor VTOL. The results of the parametric study are summarized in terms of design guidelines. This volume is a guide to the computer programs and contains FORTRAN listings.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1971
Accession Number
AD0889220

Entities

People

  • H. E. Losey
  • Sheng‐Jen Hsieh

Organizations

  • Bell Flight

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aerodynamic Drag
  • Aerodynamic Forces
  • Aircrafts
  • Cartesian Coordinates
  • Computational Fluid Dynamics
  • Computational Science
  • Computer Programming
  • Computer Programs
  • Computers
  • Coordinate Systems
  • Dynamic Response
  • Equations Of Motion
  • Resonant Frequency
  • Test And Evaluation
  • Three Dimensional
  • Transient Response Analysis
  • Two Dimensional

Fields of Study

  • Engineering

Readers

  • Aerospace Engineering
  • Control Systems Engineering.