Modeling Helicopter Blade Dynamics Using a Modified Myklestad-Prohl Transfer Matrix Method.

Abstract

Rotor Blade vibratory stresses are of utmost importance in helicopter design. A modified Myklestad-Prohl method for rotating beams has been coded to assist in preliminary helicopter rotor blade design. The rotor blade dynamics program is part of the Joint Army/Navy Rotorcraft Analysis and Design (JANRAD) program which was developed to aid in the preliminary design and analysis of helicopter rotor performance, stability and control, and rotor dynamics. JANRAD is an interactive, user friendly program written in MATLAB version 4.0 programming language and has been used extensively in the Naval Postgraduate School's capstone helicopter design course (AA 4306). A sample case is run and results are discussed. (AN)

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1994
Accession Number
ADA289891

Entities

People

  • Juan D. Cuesta

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Airframes
  • Blade Tips
  • Computer Programming
  • Computer Programs
  • Difference Equations
  • Differential Equations
  • Dynamic Response
  • Dynamics
  • Helicopter Rotors
  • Helicopters
  • Language
  • Modulus Of Elasticity
  • Programming Languages
  • Rotary Wing Aircraft
  • User Friendly
  • Vibration

Fields of Study

  • Physics

Readers

  • Aerospace Engineering
  • Computer Science.