A Study of the Effects of Thermal Shield Temperature Changes on Gun Tube Curvature

Abstract

The subject of this investigation is the deformation and consequent lack of aim that a gun tube undergoes as a result of its initial imperfections. By initial imperfections, we mean the non-straightness of the centroidal axis of the gun tube. In reality, the centroidal axis is a general space curve. For the sake of analysis, however, it is assumed to be helical in shape. The gun tube is modeled as a rod of linearly elastic material, encased in a perfectly straight cylindrical thermal shroud to protect it from non-uniform temperature changes. The interaction between these two elements, namely the shroud and the gun tube renders the problem of finding the muzzle end displacement of the gun tube statistically indeterminate. Heat transfer, Gun tubes, Thermal shroud, Initially curved gun tube, Curved beam, Accuracy, Jump, Dispersion.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1989
Accession Number
ADA209551

Entities

People

  • Ashwin V. Kalbag
  • Herbert E. Kingsbury

Organizations

  • University of Delaware

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Classification
  • Climate Change
  • Coefficients
  • Coordinate Systems
  • Differential Equations
  • Elastic Materials
  • Engineering
  • Equations
  • Finite Element Analysis
  • Geometry
  • Mechanics
  • Modulus Of Elasticity
  • Molecular Dynamics
  • Security
  • Shear Modulus
  • Stiffness
  • Thermal Expansion

Readers

  • Combustion and Flow Dynamics.
  • Mechanical Engineering/Mechanics of Materials.
  • Pulsed Power and Plasma Physics.

Technology Areas

  • Space
  • Space - Hall-Effect Thruster