Krzysztof Podgórski
Prefekt Statistiska institutionen, Professor
The Laplace multi-axial response model for fatigue analysis
Författare
Summary, in English
This paper introduces means for fatigue damage rates estimation using Laplace distributed multiaxial loads. The model is suitable for description of stresses containing transients of random amplitudes and locations. Explicit formulas for computing the expected value of rainflow damage index as a function of excess kurtosis are given for correlated loads. A Laplace model is used to describe variability of forces and bending moments measured at some location ona cultivator frame. An example of actual cultivator data is used to illustrate the model and demonstrate the accuracy of damage index prediction.
Avdelning/ar
- Statistiska institutionen
Publiceringsår
2015
Språk
Engelska
Publikation/Tidskrift/Serie
Working Papers in Statistics
Issue
8
Fulltext
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Länkar
Dokumenttyp
Working paper
Förlag
Department of Statistics, Lund university
Ämne
- Probability Theory and Statistics
Nyckelord
- Laplace moving averages
- multi-axial loads
- rainflow method
- random loading
- spectral density function
Aktiv
Published