Vibration fatigue by spectral methods is a frequency-domain approach used to estimate the high-cycle fatigue life of structures subjected to random vibrations. Unlike traditional time-domain analysis, which relies on rainflow cycle counting, spectral methods utilize functions and spectral moments to predict fatigue damage directly. Core Concepts of Spectral Fatigue Analysis
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Vibration Fatigue by Spectral Methods: From Structural Dynamics to Fatigue Damage – Theory and Experiments " (Elsevier, 2020). Vibration fatigue by spectral methods is a frequency-domain