Aeroelastic Analysis of the Elastic Gimbal Rotor

Abstract

The Elastic Gimbal Rotor (EGR) is a new Sikorsky concept in helicopter rotor systems. The EGR uses essentially bearingless rotor blades attached to a rotor head which is able to tilt relative to the rotor shaft. The tilt motion about the gimbal bearing is restrained by an elastically deformable member of members which form part of the hub. This spring restraint action permits hub moments to be transferred from the rotor blades to the main rotor shaft. This program was a preliminary study of the elastic gimbal rotor. The emphais was on the dynamic loads and the aeroelastic response of the system.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1981
Accession Number
ADA129046

Entities

People

  • Raymond G. Carlson
  • Wen-liu Miao

Organizations

  • United Technologies Corporation

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aerodynamic Configurations
  • Aircrafts
  • Airframes
  • Bending Moments
  • Centrifugal Force
  • Computer Programs
  • Coordinate Systems
  • Equations
  • Frequency
  • Fuselages
  • Geometry
  • Helicopter Rotors
  • Helicopters
  • Load Distribution
  • Mechanical Working
  • Resonant Frequency
  • Structural Loads

Readers

  • Aerospace Engineering
  • Structural Dynamics.