Normal Modes Analysis of Gun Vibrations by the Uniform Segment Method.

Abstract

In a related paper published in the Proceedings of the Fourth US Army Symposium on Gun Dynamics (Sneck and Gast, Normal Modes Analysis of Gun Dynamics ), the Euler-Bernoulli equation for a prismatic gun/beam elastically supported (transverse and rotation) at the breech was solved for its normal vibration modes and response to various transient loadings. This report is an extension of the reference in that the axially varying tube properties are now considered, whereas the boundary conditions are removed and applied as external displacement dependent loads. In the Uniform Segment Method the spatial domain is divided into a finite number or prismatic sections within which the Euler equation is applied. Keywords: Vibrations, Modal analysis, Beams, Nonuniform beams, Elastic supports, Numerical methods, Gun dynamics, Structural dynamics.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1987
Accession Number
ADA189332

Entities

People

  • Ronald G. Gast

Organizations

  • United States Army Armament Research, Development and Engineering Center

Tags

Communities of Interest

  • C4I
  • Engineered Resilient Systems
  • Weapons Technologies

DTIC Thesaurus Topics

  • Boundaries
  • Computational Fluid Dynamics
  • Computational Science
  • Curvature
  • Dynamic Response
  • Equations
  • Euler Equations
  • Frequency
  • Geometry
  • Mechanics
  • Military Research
  • Modal Analysis
  • Modulus Of Elasticity
  • Projectile Trajectories
  • Resonant Frequency
  • Shape
  • Vibration

Fields of Study

  • Engineering
  • Physics

Readers

  • Structural Dynamics.
  • ballistics.