Handbook of Uncertainty Methodology for Engine Testing of Pyestock

Abstract

Measurements of aircraft gas turbine engine performance in the altitude test facility at RAE(P) are subject to a small amount of uncertainty resulting from a combination of precision (or random) errors and bias (or systematic) errors. The limits of the precision errors can be readily calculated by statistical analysis of the results measured during the engine tests. Bias limits are not directly observable in the test results, but can be predicted by a comprehensive assessment of all possible sources of error, which are propagated to the test results. Many people find these methods difficult to comprehend and apply and this Memorandum has been written for their benefit. It is a guide not only for engine test staff at Pyestock but also for their customers who need to be assured of the rigorous attention given to identifying and reducing measurement uncertainty. Keywords: Uncertainty, Engine testing, Statistics, Curve fitting, Error prediction, Great Britain.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1989
Accession Number
ADA220351

Entities

People

  • J. C. Ascough

Organizations

  • Royal Aircraft Establishment

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Space

DTIC Thesaurus Topics

  • Acquisition
  • Anomaly Detection
  • Change Detection
  • Computational Science
  • Computer Programs
  • Confidence Limits
  • Data Acquisition
  • Data Science
  • Gaussian Distributions
  • Information Science
  • Measurement
  • Measuring Instruments
  • Probability Distributions
  • Statistical Analysis
  • Surveys
  • Test Facilities
  • Turbines

Readers

  • Aerodynamics.
  • Regression Analysis.
  • Team-Based Human-Centered Cognitive Task Decision Making and Information Performance.