Modular Reflector Concept Study.

Abstract

A study was conducted to evaluate the feasibility of space-erecting a 100-meter paraboloidal R.F. reflector by joining a number of individually deployed structural modules. Three module design concepts were considered: (1) the Deployable Cell Module (DCM), (2) the Modular Paraboloidal Erectable Truss Antenna (Mod-PETA), and (3) the Modular Erectable Truss Antenna (META). With the space shuttle (STS) as the launch system, the methodology of packaging and stowing in the orbiter, and of dispensing, deploying and joining, in orbit, were studied and the necessary support equipment identified. The structural performance of the completed reflectors was evaluated and their overall operational capability and feasibility were evaluated and compared. The potential of the three concepts to maintain stable shape in the space environment was determined. Their ability to operate at radio frequencies of 1 GHz and higher was assessed assuming the reflector surface to consist of a number of flat, hexagonal facets. A parametric study was performed to determine figure degradation as a function of reflector size, flat facet size and f/D ratio.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1981
Accession Number
ADA304494

Entities

People

  • D. H. Vaughan

Organizations

  • General Dynamics

Tags

Communities of Interest

  • Sensors
  • Space

DTIC Thesaurus Topics

  • Accuracy
  • Composite Materials
  • Control Systems
  • Epoxy Composites
  • Epoxy Laminates
  • Geometry
  • Graphite Epoxy Composites
  • Graphitic Materials
  • Material Degradation Processes
  • Materials
  • Materials Processing
  • Materials Testing
  • Measurement
  • Modulus Of Elasticity
  • Plastic Explosives
  • Structural Components
  • Three Dimensional

Readers

  • Missile Defense Systems.
  • Radar Systems Engineering.
  • Structural Dynamics.

Technology Areas

  • Space
  • Space - Satellites