Investigation of a Low-Cost Servoactuator for HYSAS

Abstract

This document covers the design and testing of a fluidic input servoactuator to perform the series servoactuator function in a helicopter hydrofluidic stability augmentation system (HYSAS). The servoactuator consists of a two-stage fluidic amplifier cascade driving a conventional spool valve that positions a spring-centered cylinder. Simplicity and minimum cost commensurate with essential servoactuator performance was the design goal. A breadboard model servoactuator was designed, fabricated, and bench tested to evaluate feasibility. Servoactuator performance objectives were met at nominal supply conditions, but not over the complete operational oil temperature range.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1978
Accession Number
ADA059188

Entities

People

  • James O. Hedeen

Organizations

  • Honeywell International, Inc.

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Actuators
  • Amplifiers
  • Assembly
  • Breadboard Models
  • Cost Estimates
  • Dynamic Response
  • Fluidic Amplifiers
  • Frequency
  • Government Procurement
  • Hypervelocity Flow
  • Impedance
  • Low Temperature
  • Power Amplifiers
  • Production
  • Resistance
  • Standards
  • Transfer Functions

Fields of Study

  • Physics

Readers

  • Robotics and Automation.