PRELIMINARY PARAMETRIC STUDY OF THE FLUTTER ARMING PRINCIPLE FOR FUZES

Abstract

The Flutter Arming Mechanism (FAM) principle is a controlled flutter phenomenon. A rectangular flat plate oscillating member is pivoted about its midchord on a member providing a flexural restoring moment. Placed edgewise in an air stream, the system is in unstable-stable equilibrium; at a predetermined air speed or above, aerodynamic lift on the front portion of the flat plate overcomes the flexural resisting moment and the oscillator vibrates. The vibrations occur at the natural frequency of the oscillator-torsion member combination. Wind tunnel data are presented which indicate the FAM principle has the necessary criterion of a time base, velocity discriminating mechanism required for bomb and bomblet fuze application. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Sep 11, 1967
Accession Number
AD0834469

Entities

People

  • Peter D. Gratton

Organizations

  • Naval Ordnance Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Aerodynamic Forces
  • Aerodynamic Lift
  • Air Flow
  • Frequency
  • Frequency Response
  • Instrumentation
  • Leading Edges
  • Munitions
  • Ordnance Laboratories
  • Oscillators
  • Physical Properties
  • Resonant Frequency
  • Static Pressure
  • United States
  • Vibration
  • Waves
  • Wind Tunnels

Readers

  • Aerodynamics/Aeronautics.
  • Structural Dynamics.