Open and Closed Loop Stability of Hingeless Rotor Helicopter Air and Ground Resonance,

Abstract

The air and ground resonance instabilities of hingeless rotor helicopters are examined on a relatively broad parametric basis including the effects of blade tuning, virtual hinge locations, and blade hysteresis damping, as well as size and scale effects in the gross weight range from 5,000 to 48,000 pounds. A special case of a 72,000 pound helicopter air resonance instability is also included. (Modified author abstract)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1974
Accession Number
AD0772826

Entities

People

  • David J. Bailey
  • Maurice I. Young
  • Murray S. Hirschbein

Organizations

  • University of Delaware

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Abstracts
  • Dynamics
  • Helicopters
  • Hingeless
  • Hinges
  • Hysteresis
  • Instability
  • Joints
  • Resonance
  • Rotary Wing Aircraft

Readers

  • Aerospace Engineering
  • Control Systems Engineering.