Adam Niesłony – författare

This book brings together the latest research on vibration fatigue and related topics from the first international event entirely dedicated to the field: a symposium held in Udine, Italy, on September 17–18, 2025, celebrating the 40th anniversary of Turan Dirlik’s doctoral thesis, which introduced the formula for the probability distribution of rainflow ranges. Featuring contributions from both academia and industry, the book covers theoretical, numerical, and experimental approaches to fatigue analysis, including spectral and probabilistic methods, non-stationary and non-Gaussian processes, shaker testing, mission synthesis, and industrial case studies. Serving as a unique reference for engineers, researchers, and practitioners, it offers cutting-edge tools and insights for the analysis, design, and testing of structures and mechanical components subjected to vibrational loads.

Themonographisdevotedtothespectralmethodfordeterminationoffatigue life of machine elements and structures under multiaxial service loading. A detailed review of literature on spectral methods that includes: publications describing various relations between histories of loading and power spectral density functions, some methods of fatigue life determination under Ga- sian loading and under multiaxial service loading has been presented in the monograph. The monograph contains theoretical foundations of the spectral method for fatigue life determination. The authors have discussed a rule of description of random loading states with the matrix of power spectral d- sity functions of the stress/strain tensor components. Some chosen criteria of multiaxial fatigue failure being linear combinations of stress or strain com- nents on the critical plane have been analyzed. The proposed formula enables to determine power spectral density of the equivalent history directly from the components of the power spectral density matrix of the multidimensional stochastic process. The assumptions and the procedure of determination of basic relationships of the spectral method according to stress and strain - proacheshavebeen presented. The authors workedout equations determining the fatiguelife accordingto the spectralmethod using various linear hypot- ses of fatigue damage accumulation.