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RAIN FLOW CYCLE DISTRIBUTIONS FOR FATIGUE LIFE PREDICTION UNDER GAUSSIAN LOAD PROCESSES
Author(s) -
Lindgren G.,
Rychlik I.
Publication year - 1987
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1111/j.1460-2695.1987.tb00482.x
Subject(s) - maxima and minima , vibration fatigue , amplitude , structural engineering , flow (mathematics) , vibration , maxima , noise (video) , limit (mathematics) , gaussian , mathematics , engineering , computer science , acoustics , fatigue testing , mathematical analysis , physics , geometry , artificial intelligence , art , quantum mechanics , performance art , image (mathematics) , art history
— We present a new and simple definition of the Rain Flow Cycle count method for the analysis of a random load process. It is combined with the Palmgren‐Miner damage rule, and a stochastic model for the fatigue life and fatigue limit variability. Algorithms are presented which make it possible to calculate the RFC‐amplitude distribution, based on a Markov Chain approximation of local maxima and minima. The method derived would apply to structures subjected to random fatigue loads such as acoustic noise, random vibration or sea waves, etc.