Study of an Advanced Control System for Small Free-Turbine Engines

Abstract

Advanced small free-turbine engines in the 2-to-5-pps airflow class have undergone vast improvements in performance, permitting large reductions in overall size. Effort is required to optimize performance and to miniaturize the engine control system to keep pace with these improvements. This study program was undertaken to conceptually design an advanced engine control system for this class of engine, providing all the required functions consistent with an advanced system and to accommodate, with minimum hardware change, such variants as regenerative cycle and/or variable turbine geometry. Study effort to determine the optimum control for the small engine of the mid 1970's fell into two major categories: mode selection and technology selection. Technology selection consisted of reviewing electronic, fluidic, and hydromechanical technologies against a weighted set of evaluation criteria for application to the proposed system.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1969
Accession Number
AD0860679

Entities

People

  • Donald E. Anschutz
  • Melvin L. Perkins
  • Thomas L. Soule

Organizations

  • United Technologies Corporation

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Aircrafts
  • Brushless Dc Motors
  • Closed Loop Systems
  • Control Systems
  • Convection
  • Electronic Components
  • Engineers
  • Failure Mode And Effect Analysis
  • Fluid Control
  • Fluidic Amplifiers
  • Fluidics
  • Heat Transfer
  • Metal Oxide Semiconductors
  • Resonant Frequency
  • Three Dimensional
  • Transducers

Readers

  • Aerospace Engineering
  • Systems Analysis and Design

Technology Areas

  • Microelectronics
  • Microelectronics - Microelectromechanical Systems