STUDY OF AUTOMATIC CONTROL SYSTEMS FOR HELICOPTERS. PART I. AERODYNAMIC TORQUE OF A HELICOPTER ROTOR EXPERIENCING TRANSIENTS IN RPM WHILE HOVERING

Abstract

A study is being made of control systems from the point of view of attitudes and power. An equation was developed for the aerodynamic torque absorbed by a helicopter rotor experiencing transient disturbances in rpm while the helicopter is hovering. Auxiliary equations were derived to define the simultaneous transients in blade-coning angle and vertical velocity of the aircraft. The stipulated conditions and assumptions involved in the study are described.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1953
Accession Number
AD0015981

Entities

People

  • Paul Warsett

Organizations

  • Honeywell International, Inc.

Tags

DTIC Thesaurus Topics

  • Aerodynamic Forces
  • Aircrafts
  • Airframes
  • Angular Acceleration
  • Centrifugal Force
  • Coefficients
  • Differential Equations
  • Elastic Properties
  • Equations
  • Helicopter Rotors
  • Helicopters
  • Hovering
  • Inertia
  • Linear Differential Equations
  • Moment Of Inertia
  • Momentum
  • Steady State

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Calculus or Mathematical Analysis
  • Systems Analysis and Design