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Non-parametric assessment of the uncertainty in the analysis of the airfoil blade traces

  • Cracow University of Technology
  • Kielce University of Technology
  • Kraków University of Economics

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

39 Citations (Scopus)

Abstract

The paper describes a non-parametric approach to the statistical analysis performed on data obtained during investigation on the airfoil blade traces. This approach releases us from limits of many conditions. Typical statistical analysis of data, with factorial (qualitative) control approach, bases on many theoretical assumptions, with the most important and the most influential one: the normality of random noises distributions (usually named 'errors'). The solution is the bootstrap approach, originally proposed by Efron in 1979, later in 1995 described in details by Shao and Tu. The bootstrap is formally the method based on random resampling with replacement from the source dataset. It allows to identify the whole distribution shape of raw data and related confidence intervals without additional assumptions about particular distribution. The paper presents the practical case: the factorial approach performed for the fixed-effect analysis of the relation between secondary dendrite arm spacing and carbides for the airfoil blade traces. The paper contains notes on encountered difficulties and possible guidelines for similar analysis.

Original languageEnglish
Title of host publicationMETAL 2017 - 26th International Conference on Metallurgy and Materials, Conference Proceedings
PublisherTANGER Ltd.
Pages1412-1418
Number of pages7
ISBN (Electronic)9788087294796
Publication statusPublished - 2017
Event26th International Conference on Metallurgy and Materials, METAL 2017 - Brno, Czech Republic
Duration: 24 May 201726 May 2017

Publication series

NameMETAL 2017 - 26th International Conference on Metallurgy and Materials, Conference Proceedings
Volume2017-January

Conference

Conference26th International Conference on Metallurgy and Materials, METAL 2017
Country/TerritoryCzech Republic
CityBrno
Period24/05/1726/05/17

Keywords

  • Carbide
  • Non-parametric approach
  • SDAS
  • Superalloy
  • Uncertainty

ASJC Scopus subject areas

  • Metals and Alloys
  • Mechanics of Materials
  • Surfaces, Coatings and Films

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