Analysis of Additively Manufactured Rings Under Compression Loading for Use in a Vacuum Lighter Than Air Vehicle Structure

Abstract

A Vacuum Lighter Than Air Vehicle (VLTAV) utilizes a lightweight structure paired with an internal vacuum to achieve buoyancy; this allows it to float through-out a given atmosphere. The pressure differential between the internal vacuum and external atmosphere places the vehicle under intense loading. A specific structure under investigation is the celestial icosahedron, which features nine intersecting rings that have an outer diameter of 0.2032m and circular cross-sectional thickness of 5.08mm. The celestial's rings are positioned in three different orientations and are analyzed both experimentally and analytically.

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Document Details

Document Type
Technical Report
Publication Date
Mar 26, 2020
Accession Number
AD1101734

Entities

People

  • Kevin D. Greenoe

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Autonomy
  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Space

DTIC Thesaurus Topics

  • Additive Manufacturing
  • Aerospace Industry
  • Air Force
  • Aircrafts
  • Computational Science
  • Computer-Aided Design
  • Differential Equations
  • Finite Element Analysis
  • Fluid Mechanics
  • Fused Deposition Modeling
  • Geometry
  • Governments
  • Manufacturing
  • Materials Testing
  • Mechanical Properties
  • Mechanics
  • Modulus Of Elasticity
  • Numerical Analysis
  • Orientation (Direction)
  • Printing
  • Stiffness
  • Tensile Strength
  • United States
  • United States Government
  • Unmanned Aerial Vehicles

Fields of Study

  • Physics

Readers

  • Marine Hydrodynamics
  • Pulsed Power and Plasma Physics.
  • Structural Dynamics.