Nonlinear Modeling, Analysis, and Control of Instruments Using Rotating Unbalanced Mass Actuators

Abstract

Attitude control for balloon and space-borne gamma ray and x-ray telescopes is divided into two areas: scanning and pointing. Currently, the telescope is pointed using an auxiliary control system (ACS) consisting of the standard CMG's, reaction wheels or torque motors and scanning is accomplished using the RUM (rotating unbalanced mass) actuator. The research conducted for this dissertation is motivated by the prospect of simplifying or eliminating the ACS by using a pointing control scheme incorporating RUM devices for pointing actuation.

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Document Details

Document Type
Technical Report
Publication Date
Aug 04, 1998
Accession Number
ADA350758

Entities

People

  • Carlee A. Bishop

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Actuators
  • Air Force
  • Aircrafts
  • Angular Momentum
  • Control Systems
  • Detectors
  • Electrical Engineering
  • Gamma Rays
  • Linear Systems
  • Mechanical Properties
  • Nonlinear Dynamics
  • Nonlinear Systems
  • Physical Properties
  • Two Dimensional
  • Word Processors
  • X Rays
  • X-Ray Detectors

Fields of Study

  • Physics

Readers

  • Robotics and Automation.
  • Solar Physics
  • Systems Analysis and Design

Technology Areas

  • Space
  • Space - Spacecraft Maneuvers