Ground Structural Coupling Testing Model Updating in the Aeroservoelastic Qualification of a Combat Aircraft

Abstract

This paper is concerned with the role played by the ground Structural Coupling Test (SCT) and the update of the aeroservoelastic model in the qualification process of a modern combat aircraft. It represents the completion of Reference 1 after several improvements introduced in the Notch Filter (NF) design procedure, numerous ground test campaigns and the confirmation of flight trials. Most of modern combat aircraft are equipped with fly-by- wire and digital flight control systems (FCS). The problem of interaction between the dynamic response of the airframe and the FCS is usually solved through an appropriate set of notch filters, designed to attenuate the level of structure vibrations picked up by the FCS sensors. Fundamental part of the qualification of the notch filter set is the ground testing up activity, generally known as ground Structural Coupling Test.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 2000
Accession Number
ADP010478

Entities

People

  • B. Caldwell
  • John V. Becker
  • V. Vaccaro

Tags

Communities of Interest

  • Air Platforms
  • Sensors
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Airframes
  • Control Surfaces
  • Control Systems
  • Databases
  • Dynamic Response
  • Experimental Data
  • External Stores
  • Flight Control Systems
  • Frequency
  • Measurement
  • Military Aircraft
  • Notch Filters
  • Standards
  • Structural Components
  • Test Equipment
  • Transfer Functions

Fields of Study

  • Engineering

Readers

  • Aerospace Test and Evaluation
  • Microwave Engineering.
  • Robotics and Automation.