Structural Mode Frequencies of FOG-M (Fiber Optics Guided-Missile) Actuator/Fin

Abstract

An earlier report examined the pneumatic servo stiffness as a potential cause of marginal fin flutter mode stability. In this analysis, the bending stiffness of the vane, vane/actuator shaft, vane and actuator bearing combination is examined. It is shown that there exists a predominant 50 Hz mode which is caused by the fin structure and the radial type spring of the fin base into which the actuator shaft is inserted.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1988
Accession Number
ADA206327

Entities

People

  • Gordon D. Welford

Organizations

  • United States Army Aviation and Missile Command

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Actuators
  • Aluminum
  • Bearings
  • Deflection
  • Demographic Cohorts
  • Deployment
  • Diagrams
  • Elements
  • Feedback
  • Frequency
  • Materials
  • Measurement
  • Pneumatic Actuators
  • Resonant Frequency
  • Schematic Diagrams
  • Security
  • Wing Tips

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Optical Fiber Sensing and Electromagnetic Propagation.
  • Structural Dynamics.