Evaluation of Mechanical Servo-Actuator for Flight Control Systems

Abstract

The report discusses the design, fabrication and test of an all- mechanical servo-actuator with manual override capability for helicopter flight control application. The all-mechanical system is a power boost with a mechanical override feature and provides mechanical amplification of signal torques from 0.5 to 1.0 lb-in. to operate output torque loads up to 1,142 lb-in. The goal of the program was to develop a mechanical servo-actuator to operate the helicopter swashplate, for cyclic and collective pitch control, with performance characteristics comparable to those of the hydraulic servo-actuator on the XH-51A helicopter. The test item was subjected to a series of tests, including force threshold, resolution, frequency response, step response, and endurance.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1969
Accession Number
AD0865651

Entities

People

  • C. R. Schreiber
  • N. M. Gabriel

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Actuators
  • Army Aviation
  • Contracts
  • Control Sticks
  • Control Systems
  • Cyclic Loads
  • Flight Control Systems
  • Frequency
  • Frequency Response
  • Generators
  • Government Procurement
  • Governments
  • Instrumentation
  • Load Cells
  • Schematic Diagrams
  • Test Fixtures
  • Worm Gears

Fields of Study

  • Physics

Readers

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