Digital Control of Flight Simulator Motion Base Actuator.

Abstract

Digital control strategies for a nonlinear motion base actuator are considered and a compound linear/nonlinear algorithm is derived for velocity tracking under a range of load conditions for representative motion demands. Discrete frequency domain methods are employed to synthesize the linear components of the control law and to establish the stability of the closed loop system via describing function analysis. The nonlinear compensation, providing attenuation of Coulomb friction effects, is realised through a velocity dependent gain term, which does not significantly affect the satisfactory large amplitude system response. Overall closed loop system performance is validated through computer simulation. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1984
Accession Number
ADA143917

Entities

People

  • J. Sandor

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Aircrafts
  • Closed Loop Systems
  • Computations
  • Computer Simulations
  • Computers
  • Control Systems
  • Department Of Defense
  • Flight Simulators
  • Frequency
  • Frequency Domain
  • Frequency Response
  • Mechanical Engineering
  • Nonlinear Systems
  • Open Loop Systems
  • Simulations
  • Simulators
  • Transfer Functions

Readers

  • Robotics and Automation.
  • Structural Dynamics.
  • Systems Analysis and Design