Evaluation of Prognostic and Probabilistic Individual Aircraft Tracking (P2IAT): Volume 1 - Results

Abstract

A probabilistic fatigue damage tracking method for airframe structure with an inspection criterion of Single Flight Probability ofFailure (SFPOF) exceeding 10-7 was compared to the conventional method for fatigue tracking. Two retired fighter aircraft wingswere experimentally loaded with different load histories. Fatigue at 14 locations in the outer portion of each wing were trackedwith both methods. It was thought that probabilistic tracking would results in fewer inspections because it was believed thatSFPOF at inspections with conventional tracking was significantly less than 10-7. Probabilistic fatigue tracking resulted in thesame or greater number of inspections as conventional tracking. SFPOF at the time of inspection with conventional tracking wasfrequently greater than 10-7. Thus, the greater number of inspections with probabilistic fatigue tracking.

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Document Details

Document Type
Technical Report
Publication Date
Feb 11, 2022
Accession Number
AD1168481

Entities

People

  • Eric J. Tuegel

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Air Force Facilities
  • Air Force Research Laboratories
  • Aircrafts
  • Airframes
  • Bayesian Networks
  • Digital Twins
  • Eddy Currents
  • Governments
  • Information Science
  • Military Research
  • Normal Distribution
  • Probability
  • Probability Distributions
  • Random Variables
  • Standards

Readers

  • Sensor Fusion and Tracking Systems.
  • Structural Health Monitoring of Composite Structures.