Methods for Reducing Vibrations of Equipment Mounted on Helicopter External Stores Stations.

Abstract

Three designs for reducing the vertical oscillations induced in equipment mounted on the wings of AH-1G helicopters are submitted. A design for a variable stiffness spring to accommodate a change in the mass of the system to be isolated is presented. By use of an analog simulation of a dynamic absorber it is shown that a dynamic absorber is not satisfactory for small ratios of damper mass to system mass. An experimental program is formulated to determine the dynamic properties of a test fixture to be used in determining isolator effectiveness. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 06, 1973
Accession Number
AD0768774

Entities

People

  • James M. Oliver

Organizations

  • United States Army Aviation and Missile Command

Tags

DTIC Thesaurus Topics

  • Aircraft Equipment
  • Electronic Equipment
  • External Stores
  • Helicopters
  • Motion
  • Oscillation
  • Oscillators
  • Simulations
  • Stiffness
  • Test Equipment
  • Test Fixtures
  • Vehicle Equipment
  • Vehicles
  • Vibration

Fields of Study

  • Physics

Readers

  • Control Systems Engineering.
  • Software Engineering