A High-Frequency Servosystem for Fuel Control in Hypersonic Engines

Abstract

A hydrogen fuel-flow valve with an electrohydraulic servosystem is described. An analysis of the servosystem is presented, along with a discussion of the limitations imposed on system performance by nonlinearities. The response of the valve to swept-frequency inputs is experimentally determined and compared with analytical results obtained from a computer model. The valve is found to perform favorably for frequencies up to 200 Hz.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1991
Accession Number
ADA241468

Entities

People

  • Donald L. Simon

Organizations

  • National Aeronautics and Space Administration

Tags

Communities of Interest

  • Air Platforms
  • Space

DTIC Thesaurus Topics

  • Actuators
  • Aerospaceplanes
  • Amplitude
  • Army Aviation
  • Bulk Modulus
  • Compensators
  • Dynamic Response
  • Engines
  • Equations
  • Experimental Data
  • Frequency
  • Frequency Response
  • Hydraulic Fluids
  • Resonant Frequency
  • Test Beds
  • Transfer Functions
  • Vibration

Fields of Study

  • Physics

Readers

  • Control Systems Engineering.
  • Internal Combustion Engine (ICE) Technology.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flow