Dynamics Model for a Multi-Tethered Space-Based Interferometer

Abstract

A mathematical dynamics model is established for a space-based interferometer concept comprised of multiple collector elements connected to a common central body by tethers of variable length. The system as a whole is to rotate in a coordinated fashion while the collectors simultaneously execute linear extension and retraction motions. The system is taken to consist of a single rigid body and N point mass collector elements connected to the rigid body by massless tethers. The equations of motion for the system are derived from fundamental Newton-Euler momentum principles. Tether constitutive behavior is discussed. Prescribed motion of any system degrees of freedom is treated, and expressions for the corresponding constraint force/torque components are established.

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Document Details

Document Type
Technical Report
Publication Date
Aug 07, 2000
Accession Number
ADA380377

Entities

People

  • Stephen S. Gates

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Angular Momentum
  • Control Systems
  • Dynamics
  • Elastic Materials
  • Equations
  • Equations Of Motion
  • Equations Of State
  • Geometry
  • Interferometers
  • Linear Momentum
  • Materials
  • Mechanics
  • Military Research
  • Models
  • Molecular Dynamics
  • Momentum
  • Space Based

Fields of Study

  • Engineering
  • Physics

Readers

  • Control Systems Engineering.
  • Electrical Engineering

Technology Areas

  • Space
  • Space - Orbital Debris
  • Space - Spacecraft Maneuvers